diff --git a/abstract-document/pom.xml b/abstract-document/pom.xml
index b7a348d2..be9aa68b 100644
--- a/abstract-document/pom.xml
+++ b/abstract-document/pom.xml
@@ -29,7 +29,7 @@
     <parent>
         <artifactId>java-design-patterns</artifactId>
         <groupId>com.iluwatar</groupId>
-        <version>1.13.0-SNAPSHOT</version>
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     </parent>
     <artifactId>abstract-document</artifactId>
     <dependencies>
diff --git a/abstract-factory/pom.xml b/abstract-factory/pom.xml
index ec0f700a..1d54f0c8 100644
--- a/abstract-factory/pom.xml
+++ b/abstract-factory/pom.xml
@@ -29,7 +29,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
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   <artifactId>abstract-factory</artifactId>
   <dependencies>
diff --git a/adapter/pom.xml b/adapter/pom.xml
index 2c99796f..d8414f85 100644
--- a/adapter/pom.xml
+++ b/adapter/pom.xml
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     <groupId>com.iluwatar</groupId>
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diff --git a/aggregator-microservices/aggregator-service/pom.xml b/aggregator-microservices/aggregator-service/pom.xml
index 169d0da9..46d7d72c 100644
--- a/aggregator-microservices/aggregator-service/pom.xml
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diff --git a/aggregator-microservices/information-microservice/pom.xml b/aggregator-microservices/information-microservice/pom.xml
index 98654034..5d2d97fe 100644
--- a/aggregator-microservices/information-microservice/pom.xml
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diff --git a/aggregator-microservices/inventory-microservice/pom.xml b/aggregator-microservices/inventory-microservice/pom.xml
index f8844dd3..8869596f 100644
--- a/aggregator-microservices/inventory-microservice/pom.xml
+++ b/aggregator-microservices/inventory-microservice/pom.xml
@@ -29,7 +29,7 @@
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         <groupId>com.iluwatar</groupId>
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diff --git a/aggregator-microservices/pom.xml b/aggregator-microservices/pom.xml
index 6e9496ba..85d5ebd9 100644
--- a/aggregator-microservices/pom.xml
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diff --git a/api-gateway/api-gateway-service/pom.xml b/api-gateway/api-gateway-service/pom.xml
index 87a1ebb5..e24613b6 100644
--- a/api-gateway/api-gateway-service/pom.xml
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diff --git a/api-gateway/image-microservice/pom.xml b/api-gateway/image-microservice/pom.xml
index c29932fa..18771f34 100644
--- a/api-gateway/image-microservice/pom.xml
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   <modelVersion>4.0.0</modelVersion>
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index 48bfff9c..9222751d 100644
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diff --git a/api-gateway/price-microservice/pom.xml b/api-gateway/price-microservice/pom.xml
index 24e9663a..a5d5aad3 100644
--- a/api-gateway/price-microservice/pom.xml
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   <modelVersion>4.0.0</modelVersion>
diff --git a/async-method-invocation/pom.xml b/async-method-invocation/pom.xml
index d912df96..156804c5 100644
--- a/async-method-invocation/pom.xml
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diff --git a/bridge/pom.xml b/bridge/pom.xml
index a7a3883c..d1a3f0e8 100644
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diff --git a/builder/pom.xml b/builder/pom.xml
index 6c171bef..e63f68b9 100644
--- a/builder/pom.xml
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diff --git a/business-delegate/pom.xml b/business-delegate/pom.xml
index c6f7e0c3..72ad13d0 100644
--- a/business-delegate/pom.xml
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@@ -30,7 +30,7 @@
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 		<groupId>com.iluwatar</groupId>
 		<artifactId>java-design-patterns</artifactId>
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 	<artifactId>business-delegate</artifactId>
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diff --git a/caching/pom.xml b/caching/pom.xml
index c20842a8..3aa5c689 100644
--- a/caching/pom.xml
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diff --git a/callback/pom.xml b/callback/pom.xml
index 4fe17d14..fa8b6147 100644
--- a/callback/pom.xml
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diff --git a/chain/pom.xml b/chain/pom.xml
index ee3b9240..7550e61c 100644
--- a/chain/pom.xml
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   <artifactId>chain</artifactId>
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diff --git a/command/pom.xml b/command/pom.xml
index a27a56e5..cfe40ce5 100644
--- a/command/pom.xml
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diff --git a/composite/pom.xml b/composite/pom.xml
index ace29d8d..aace20b3 100644
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diff --git a/dao/pom.xml b/dao/pom.xml
index f64eff8b..85338a26 100644
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diff --git a/data-mapper/pom.xml b/data-mapper/pom.xml
index 7d1b8346..80679127 100644
--- a/data-mapper/pom.xml
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 		<groupId>com.iluwatar</groupId>
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 	<artifactId>data-mapper</artifactId>
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diff --git a/decorator/pom.xml b/decorator/pom.xml
index 7ba2a4ee..9991fdfe 100644
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diff --git a/delegation/pom.xml b/delegation/pom.xml
index 2fca225b..ccfe1334 100644
--- a/delegation/pom.xml
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diff --git a/dependency-injection/pom.xml b/dependency-injection/pom.xml
index 88ccdd2d..e04add78 100644
--- a/dependency-injection/pom.xml
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diff --git a/double-checked-locking/pom.xml b/double-checked-locking/pom.xml
index 239bcf87..882ac218 100644
--- a/double-checked-locking/pom.xml
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diff --git a/double-dispatch/pom.xml b/double-dispatch/pom.xml
index 4f31b2e7..9be737c4 100644
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diff --git a/event-aggregator/pom.xml b/event-aggregator/pom.xml
index b7de6e01..91294b12 100644
--- a/event-aggregator/pom.xml
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@@ -28,7 +28,7 @@
 	<parent>
 		<groupId>com.iluwatar</groupId>
 		<artifactId>java-design-patterns</artifactId>
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 	<artifactId>event-aggregator</artifactId>
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diff --git a/event-driven-architecture/pom.xml b/event-driven-architecture/pom.xml
index 99ed3989..972b4982 100644
--- a/event-driven-architecture/pom.xml
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     <artifactId>event-driven-architecture</artifactId>
diff --git a/execute-around/pom.xml b/execute-around/pom.xml
index 60bb6d0a..e46835d6 100644
--- a/execute-around/pom.xml
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diff --git a/facade/pom.xml b/facade/pom.xml
index e0e0f4a4..db7de2cd 100644
--- a/facade/pom.xml
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diff --git a/factory-kit/pom.xml b/factory-kit/pom.xml
index 6c936de5..00f9285d 100644
--- a/factory-kit/pom.xml
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diff --git a/factory-method/pom.xml b/factory-method/pom.xml
index 5081ecf9..8d720eb2 100644
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diff --git a/feature-toggle/pom.xml b/feature-toggle/pom.xml
index 78c182af..6db201fb 100644
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diff --git a/fluentinterface/pom.xml b/fluentinterface/pom.xml
index ca5e115d..0dfe5d7a 100644
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diff --git a/flux/pom.xml b/flux/pom.xml
index c07cca15..27ee4f40 100644
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diff --git a/flyweight/pom.xml b/flyweight/pom.xml
index 959fa554..a153f97c 100644
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diff --git a/front-controller/pom.xml b/front-controller/pom.xml
index 2a448cff..ba6dcbe8 100644
--- a/front-controller/pom.xml
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@@ -30,7 +30,7 @@
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 		<groupId>com.iluwatar</groupId>
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diff --git a/half-sync-half-async/pom.xml b/half-sync-half-async/pom.xml
index 076dfb44..afe4e8c7 100644
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diff --git a/hexagonal/pom.xml b/hexagonal/pom.xml
index ce1a7049..004554e6 100644
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diff --git a/intercepting-filter/pom.xml b/intercepting-filter/pom.xml
index 6bb6f95c..d30d28e1 100644
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diff --git a/interpreter/pom.xml b/interpreter/pom.xml
index 9f5dd31f..051ec1c1 100644
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diff --git a/iterator/pom.xml b/iterator/pom.xml
index 484030a3..98c9f883 100644
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diff --git a/layers/pom.xml b/layers/pom.xml
index bf155b65..5af14908 100644
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+++ b/layers/pom.xml
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diff --git a/lazy-loading/pom.xml b/lazy-loading/pom.xml
index fe6d44c7..056d3b57 100644
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diff --git a/mediator/pom.xml b/mediator/pom.xml
index a6cdd028..a01cf152 100644
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     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.13.0-SNAPSHOT</version>
+    <version>1.13.0</version>
   </parent>
   <artifactId>mediator</artifactId>
   <dependencies>
diff --git a/memento/pom.xml b/memento/pom.xml
index a320f186..7c58fb36 100644
--- a/memento/pom.xml
+++ b/memento/pom.xml
@@ -29,7 +29,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.13.0-SNAPSHOT</version>
+    <version>1.13.0</version>
   </parent>
   <artifactId>memento</artifactId>
   <dependencies>
diff --git a/message-channel/pom.xml b/message-channel/pom.xml
index cbeba7a7..2b3c2e01 100644
--- a/message-channel/pom.xml
+++ b/message-channel/pom.xml
@@ -30,7 +30,7 @@
 	<parent>
 		<groupId>com.iluwatar</groupId>
 		<artifactId>java-design-patterns</artifactId>
-		<version>1.13.0-SNAPSHOT</version>
+		<version>1.13.0</version>
 	</parent>
 	<artifactId>message-channel</artifactId>
 	<dependencies>
diff --git a/model-view-controller/pom.xml b/model-view-controller/pom.xml
index 3c01f6e8..32b9d5b7 100644
--- a/model-view-controller/pom.xml
+++ b/model-view-controller/pom.xml
@@ -29,7 +29,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.13.0-SNAPSHOT</version>
+    <version>1.13.0</version>
   </parent>
   <artifactId>model-view-controller</artifactId>
   <dependencies>
diff --git a/model-view-presenter/pom.xml b/model-view-presenter/pom.xml
index 0aad02b2..6a433528 100644
--- a/model-view-presenter/pom.xml
+++ b/model-view-presenter/pom.xml
@@ -29,7 +29,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.13.0-SNAPSHOT</version>
+    <version>1.13.0</version>
   </parent>
   <artifactId>model-view-presenter</artifactId>
   <name>model-view-presenter</name>
diff --git a/monad/pom.xml b/monad/pom.xml
index 7f128272..4e9b3684 100644
--- a/monad/pom.xml
+++ b/monad/pom.xml
@@ -29,7 +29,7 @@
     <parent>
         <groupId>com.iluwatar</groupId>
         <artifactId>java-design-patterns</artifactId>
-        <version>1.13.0-SNAPSHOT</version>
+        <version>1.13.0</version>
     </parent>
     <artifactId>monad</artifactId>
     <dependencies>
diff --git a/monostate/pom.xml b/monostate/pom.xml
index 64ee52ab..80f8f919 100644
--- a/monostate/pom.xml
+++ b/monostate/pom.xml
@@ -29,7 +29,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.13.0-SNAPSHOT</version>
+    <version>1.13.0</version>
   </parent>
   <artifactId>monostate</artifactId>
   <dependencies>
diff --git a/multiton/pom.xml b/multiton/pom.xml
index 0b835ed4..1d097a06 100644
--- a/multiton/pom.xml
+++ b/multiton/pom.xml
@@ -29,7 +29,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.13.0-SNAPSHOT</version>
+    <version>1.13.0</version>
   </parent>
   <artifactId>multiton</artifactId>
   <dependencies>
diff --git a/mute-idiom/pom.xml b/mute-idiom/pom.xml
index c138c5ed..00a4dff5 100644
--- a/mute-idiom/pom.xml
+++ b/mute-idiom/pom.xml
@@ -21,7 +21,7 @@
 	<parent>
 		<groupId>com.iluwatar</groupId>
 		<artifactId>java-design-patterns</artifactId>
-		<version>1.13.0-SNAPSHOT</version>
+		<version>1.13.0</version>
 	</parent>
 	<artifactId>mute-idiom</artifactId>
 	<dependencies>
diff --git a/mutex/pom.xml b/mutex/pom.xml
index 852006cd..529652ea 100644
--- a/mutex/pom.xml
+++ b/mutex/pom.xml
@@ -29,7 +29,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.13.0-SNAPSHOT</version>
+    <version>1.13.0</version>
   </parent>
   <artifactId>mutex</artifactId>
   <dependencies>
diff --git a/naked-objects/dom/pom.xml b/naked-objects/dom/pom.xml
index 11941669..763440cc 100644
--- a/naked-objects/dom/pom.xml
+++ b/naked-objects/dom/pom.xml
@@ -16,7 +16,7 @@
 	<parent>
 		<groupId>com.iluwatar</groupId>
 		<artifactId>naked-objects</artifactId>
-		<version>1.13.0-SNAPSHOT</version>
+		<version>1.13.0</version>
 	</parent>
 
 	<artifactId>naked-objects-dom</artifactId>
diff --git a/naked-objects/fixture/pom.xml b/naked-objects/fixture/pom.xml
index 46b28146..ca2f4af8 100644
--- a/naked-objects/fixture/pom.xml
+++ b/naked-objects/fixture/pom.xml
@@ -16,7 +16,7 @@
 	<parent>
 		<groupId>com.iluwatar</groupId>
 		<artifactId>naked-objects</artifactId>
-		<version>1.13.0-SNAPSHOT</version>
+		<version>1.13.0</version>
 	</parent>
 
 	<artifactId>naked-objects-fixture</artifactId>
diff --git a/naked-objects/integtests/pom.xml b/naked-objects/integtests/pom.xml
index dccaf64a..f7bf1a1b 100644
--- a/naked-objects/integtests/pom.xml
+++ b/naked-objects/integtests/pom.xml
@@ -16,7 +16,7 @@
 	<parent>
 		<groupId>com.iluwatar</groupId>
 		<artifactId>naked-objects</artifactId>
-		<version>1.13.0-SNAPSHOT</version>
+		<version>1.13.0</version>
 	</parent>
 
 	<artifactId>naked-objects-integtests</artifactId>
diff --git a/naked-objects/pom.xml b/naked-objects/pom.xml
index d416f2a7..bc99d852 100644
--- a/naked-objects/pom.xml
+++ b/naked-objects/pom.xml
@@ -15,7 +15,7 @@
 	<parent>
 		<artifactId>java-design-patterns</artifactId>
 		<groupId>com.iluwatar</groupId>
-		<version>1.13.0-SNAPSHOT</version>
+		<version>1.13.0</version>
 	</parent>
 
 	<artifactId>naked-objects</artifactId>
@@ -367,17 +367,17 @@
 			<dependency>
 				<groupId>${project.groupId}</groupId>
 				<artifactId>naked-objects-dom</artifactId>
-				<version>1.13.0-SNAPSHOT</version>
+				<version>1.13.0</version>
 			</dependency>
 			<dependency>
 				<groupId>${project.groupId}</groupId>
 				<artifactId>naked-objects-fixture</artifactId>
-				<version>1.13.0-SNAPSHOT</version>
+				<version>1.13.0</version>
 			</dependency>
 			<dependency>
 				<groupId>${project.groupId}</groupId>
 				<artifactId>naked-objects-webapp</artifactId>
-				<version>1.13.0-SNAPSHOT</version>
+				<version>1.13.0</version>
 			</dependency>
 
 		</dependencies>
diff --git a/naked-objects/webapp/pom.xml b/naked-objects/webapp/pom.xml
index 762438ac..64aa036e 100644
--- a/naked-objects/webapp/pom.xml
+++ b/naked-objects/webapp/pom.xml
@@ -16,7 +16,7 @@
 	<parent>
 		<groupId>com.iluwatar</groupId>
 		<artifactId>naked-objects</artifactId>
-		<version>1.13.0-SNAPSHOT</version>
+		<version>1.13.0</version>
 	</parent>
 
 	<artifactId>naked-objects-webapp</artifactId>
diff --git a/null-object/pom.xml b/null-object/pom.xml
index b0adad1a..2cd0a14f 100644
--- a/null-object/pom.xml
+++ b/null-object/pom.xml
@@ -29,7 +29,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.13.0-SNAPSHOT</version>
+    <version>1.13.0</version>
   </parent>
   <artifactId>null-object</artifactId>
   <dependencies>
diff --git a/object-pool/pom.xml b/object-pool/pom.xml
index 666242d1..dcb293bb 100644
--- a/object-pool/pom.xml
+++ b/object-pool/pom.xml
@@ -29,7 +29,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.13.0-SNAPSHOT</version>
+    <version>1.13.0</version>
   </parent>
   <artifactId>object-pool</artifactId>
   <dependencies>
diff --git a/observer/pom.xml b/observer/pom.xml
index 847a7ea8..8fb01821 100644
--- a/observer/pom.xml
+++ b/observer/pom.xml
@@ -29,7 +29,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.13.0-SNAPSHOT</version>
+    <version>1.13.0</version>
   </parent>
   <artifactId>observer</artifactId>
   <dependencies>
diff --git a/page-object/pom.xml b/page-object/pom.xml
index e6f888b0..93a81d64 100644
--- a/page-object/pom.xml
+++ b/page-object/pom.xml
@@ -29,7 +29,7 @@
     <parent>
         <groupId>com.iluwatar</groupId>
         <artifactId>java-design-patterns</artifactId>
-        <version>1.13.0-SNAPSHOT</version>
+        <version>1.13.0</version>
     </parent>
     <artifactId>page-object</artifactId>
     <dependencies>
diff --git a/poison-pill/pom.xml b/poison-pill/pom.xml
index 9717f5e1..5cf56e3e 100644
--- a/poison-pill/pom.xml
+++ b/poison-pill/pom.xml
@@ -29,7 +29,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.13.0-SNAPSHOT</version>
+    <version>1.13.0</version>
   </parent>
   <artifactId>poison-pill</artifactId>
   <dependencies>
diff --git a/pom.xml b/pom.xml
index fcf1671c..ebb75aa9 100644
--- a/pom.xml
+++ b/pom.xml
@@ -23,7 +23,7 @@
     <modelVersion>4.0.0</modelVersion>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.13.0-SNAPSHOT</version>
+    <version>1.13.0</version>
     <packaging>pom</packaging>
     <inceptionYear>2014</inceptionYear>
     <properties>
diff --git a/private-class-data/pom.xml b/private-class-data/pom.xml
index 20484245..b26d3142 100644
--- a/private-class-data/pom.xml
+++ b/private-class-data/pom.xml
@@ -29,7 +29,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.13.0-SNAPSHOT</version>
+    <version>1.13.0</version>
   </parent>
   <artifactId>private-class-data</artifactId>
   <dependencies>
diff --git a/producer-consumer/pom.xml b/producer-consumer/pom.xml
index a72aa2c9..da849a75 100644
--- a/producer-consumer/pom.xml
+++ b/producer-consumer/pom.xml
@@ -29,7 +29,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.13.0-SNAPSHOT</version>
+    <version>1.13.0</version>
   </parent>
   <artifactId>producer-consumer</artifactId>
   <dependencies>
diff --git a/promise/pom.xml b/promise/pom.xml
index ca12515e..e8b129b0 100644
--- a/promise/pom.xml
+++ b/promise/pom.xml
@@ -29,7 +29,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.13.0-SNAPSHOT</version>
+    <version>1.13.0</version>
   </parent>
   <artifactId>promise</artifactId>
   <dependencies>
diff --git a/property/pom.xml b/property/pom.xml
index 1e9d0f0c..fc000c41 100644
--- a/property/pom.xml
+++ b/property/pom.xml
@@ -29,7 +29,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.13.0-SNAPSHOT</version>
+    <version>1.13.0</version>
   </parent>
   <artifactId>property</artifactId>
   <dependencies>
diff --git a/prototype/pom.xml b/prototype/pom.xml
index e8bb4303..308bf91d 100644
--- a/prototype/pom.xml
+++ b/prototype/pom.xml
@@ -29,7 +29,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.13.0-SNAPSHOT</version>
+    <version>1.13.0</version>
   </parent>
   <artifactId>prototype</artifactId>
   <dependencies>
diff --git a/proxy/pom.xml b/proxy/pom.xml
index f16736a2..8b4191e9 100644
--- a/proxy/pom.xml
+++ b/proxy/pom.xml
@@ -29,7 +29,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.13.0-SNAPSHOT</version>
+    <version>1.13.0</version>
   </parent>
   <artifactId>proxy</artifactId>
   <dependencies>
diff --git a/publish-subscribe/pom.xml b/publish-subscribe/pom.xml
index 6db6b353..73476a96 100644
--- a/publish-subscribe/pom.xml
+++ b/publish-subscribe/pom.xml
@@ -28,7 +28,7 @@
 	<parent>
 		<groupId>com.iluwatar</groupId>
 		<artifactId>java-design-patterns</artifactId>
-		<version>1.13.0-SNAPSHOT</version>
+		<version>1.13.0</version>
 	</parent>
 	<artifactId>publish-subscribe</artifactId>
 	<dependencies>
diff --git a/reactor/pom.xml b/reactor/pom.xml
index c06584c6..62ffe374 100644
--- a/reactor/pom.xml
+++ b/reactor/pom.xml
@@ -29,7 +29,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.13.0-SNAPSHOT</version>
+    <version>1.13.0</version>
   </parent>
   <artifactId>reactor</artifactId>
   <dependencies>
diff --git a/reader-writer-lock/pom.xml b/reader-writer-lock/pom.xml
index 2df3d5b1..417877b9 100644
--- a/reader-writer-lock/pom.xml
+++ b/reader-writer-lock/pom.xml
@@ -30,7 +30,7 @@
     <parent>
         <groupId>com.iluwatar</groupId>
         <artifactId>java-design-patterns</artifactId>
-        <version>1.13.0-SNAPSHOT</version>
+        <version>1.13.0</version>
     </parent>
     <artifactId>reader-writer-lock</artifactId>
     <dependencies>
diff --git a/repository/pom.xml b/repository/pom.xml
index 56a448ec..304a620e 100644
--- a/repository/pom.xml
+++ b/repository/pom.xml
@@ -29,7 +29,7 @@
     <parent>
         <groupId>com.iluwatar</groupId>
         <artifactId>java-design-patterns</artifactId>
-        <version>1.13.0-SNAPSHOT</version>
+        <version>1.13.0</version>
     </parent>
     <artifactId>repository</artifactId>
     <dependencies>
diff --git a/resource-acquisition-is-initialization/pom.xml b/resource-acquisition-is-initialization/pom.xml
index 7b411f46..549fe3cb 100644
--- a/resource-acquisition-is-initialization/pom.xml
+++ b/resource-acquisition-is-initialization/pom.xml
@@ -29,7 +29,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.13.0-SNAPSHOT</version>
+    <version>1.13.0</version>
   </parent>
   <artifactId>resource-acquisition-is-initialization</artifactId>
   <dependencies>
diff --git a/semaphore/pom.xml b/semaphore/pom.xml
index 1b3bf8b5..5f0f1c9c 100644
--- a/semaphore/pom.xml
+++ b/semaphore/pom.xml
@@ -29,7 +29,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.13.0-SNAPSHOT</version>
+    <version>1.13.0</version>
   </parent>
   <artifactId>semaphore</artifactId>
   <dependencies>
diff --git a/servant/pom.xml b/servant/pom.xml
index c235b005..145b726c 100644
--- a/servant/pom.xml
+++ b/servant/pom.xml
@@ -29,7 +29,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.13.0-SNAPSHOT</version>
+    <version>1.13.0</version>
   </parent>
   <artifactId>servant</artifactId>
   <dependencies>
diff --git a/service-layer/pom.xml b/service-layer/pom.xml
index 23d78859..da8fe17f 100644
--- a/service-layer/pom.xml
+++ b/service-layer/pom.xml
@@ -29,7 +29,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.13.0-SNAPSHOT</version>
+    <version>1.13.0</version>
   </parent>
   <artifactId>service-layer</artifactId>
   <dependencies>
diff --git a/service-locator/pom.xml b/service-locator/pom.xml
index 0f17b3dc..e0eff0e3 100644
--- a/service-locator/pom.xml
+++ b/service-locator/pom.xml
@@ -29,7 +29,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.13.0-SNAPSHOT</version>
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   </parent>
   <artifactId>service-locator</artifactId>
   <dependencies>
diff --git a/singleton/pom.xml b/singleton/pom.xml
index ab9405c5..d549025f 100644
--- a/singleton/pom.xml
+++ b/singleton/pom.xml
@@ -29,7 +29,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.13.0-SNAPSHOT</version>
+    <version>1.13.0</version>
   </parent>
   <artifactId>singleton</artifactId>
   <dependencies>
diff --git a/specification/pom.xml b/specification/pom.xml
index 03c66540..e3fcdd86 100644
--- a/specification/pom.xml
+++ b/specification/pom.xml
@@ -29,7 +29,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.13.0-SNAPSHOT</version>
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   </parent>
   <artifactId>specification</artifactId>
   <dependencies>
diff --git a/state/pom.xml b/state/pom.xml
index 134fbabe..3c481c4e 100644
--- a/state/pom.xml
+++ b/state/pom.xml
@@ -29,7 +29,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.13.0-SNAPSHOT</version>
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   </parent>
   <artifactId>state</artifactId>
   <dependencies>
diff --git a/step-builder/pom.xml b/step-builder/pom.xml
index 96098eab..7d39dad5 100644
--- a/step-builder/pom.xml
+++ b/step-builder/pom.xml
@@ -30,7 +30,7 @@
   <parent>
     <artifactId>java-design-patterns</artifactId>
     <groupId>com.iluwatar</groupId>
-    <version>1.13.0-SNAPSHOT</version>
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   </parent>
   <artifactId>step-builder</artifactId>
   <dependencies>
diff --git a/strategy/pom.xml b/strategy/pom.xml
index e6fa5808..3902a187 100644
--- a/strategy/pom.xml
+++ b/strategy/pom.xml
@@ -29,7 +29,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.13.0-SNAPSHOT</version>
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   </parent>
   <artifactId>strategy</artifactId>
   <dependencies>
diff --git a/template-method/pom.xml b/template-method/pom.xml
index ee533df8..1eeb1836 100644
--- a/template-method/pom.xml
+++ b/template-method/pom.xml
@@ -29,7 +29,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
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   <artifactId>template-method</artifactId>
   <dependencies>
diff --git a/thread-pool/pom.xml b/thread-pool/pom.xml
index e7fa4310..19031bc2 100644
--- a/thread-pool/pom.xml
+++ b/thread-pool/pom.xml
@@ -29,7 +29,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
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   </parent>
   <artifactId>thread-pool</artifactId>
   <dependencies>
diff --git a/tolerant-reader/pom.xml b/tolerant-reader/pom.xml
index e5dd3ba8..101673c9 100644
--- a/tolerant-reader/pom.xml
+++ b/tolerant-reader/pom.xml
@@ -29,7 +29,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.13.0-SNAPSHOT</version>
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   </parent>
   <artifactId>tolerant-reader</artifactId>
   <dependencies>
diff --git a/twin/pom.xml b/twin/pom.xml
index 1eb854b8..df839bf5 100644
--- a/twin/pom.xml
+++ b/twin/pom.xml
@@ -29,7 +29,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.13.0-SNAPSHOT</version>
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   </parent>
   <artifactId>twin</artifactId>
   <dependencies>
diff --git a/value-object/pom.xml b/value-object/pom.xml
index ec8de168..c2012093 100644
--- a/value-object/pom.xml
+++ b/value-object/pom.xml
@@ -30,7 +30,7 @@
 	<parent>
 		<groupId>com.iluwatar</groupId>
 		<artifactId>java-design-patterns</artifactId>
-		<version>1.13.0-SNAPSHOT</version>
+		<version>1.13.0</version>
 	</parent>
 	<artifactId>value-object</artifactId>
 	<dependencies>
diff --git a/visitor/pom.xml b/visitor/pom.xml
index 54a90e18..39c7b45e 100644
--- a/visitor/pom.xml
+++ b/visitor/pom.xml
@@ -29,7 +29,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.13.0-SNAPSHOT</version>
+    <version>1.13.0</version>
   </parent>
   <artifactId>visitor</artifactId>
   <dependencies>