diff --git a/abstract-document/pom.xml b/abstract-document/pom.xml
index 0bbb1e72..85215a02 100644
--- a/abstract-document/pom.xml
+++ b/abstract-document/pom.xml
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     <artifactId>abstract-document</artifactId>
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diff --git a/abstract-factory/pom.xml b/abstract-factory/pom.xml
index cb667134..e3129f6f 100644
--- a/abstract-factory/pom.xml
+++ b/abstract-factory/pom.xml
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diff --git a/adapter/pom.xml b/adapter/pom.xml
index 87501314..83462f28 100644
--- a/adapter/pom.xml
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diff --git a/aggregator-microservices/aggregator-service/pom.xml b/aggregator-microservices/aggregator-service/pom.xml
index 1dac9f9d..64b27f12 100644
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diff --git a/aggregator-microservices/information-microservice/pom.xml b/aggregator-microservices/information-microservice/pom.xml
index 24012790..3cb68099 100644
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index 7b19e360..027105e7 100644
--- a/aggregator-microservices/inventory-microservice/pom.xml
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diff --git a/aggregator-microservices/pom.xml b/aggregator-microservices/pom.xml
index af00de9e..a3897517 100644
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diff --git a/api-gateway/api-gateway-service/pom.xml b/api-gateway/api-gateway-service/pom.xml
index 5809754d..3bd2392f 100644
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diff --git a/api-gateway/image-microservice/pom.xml b/api-gateway/image-microservice/pom.xml
index 54f842a2..d42b3193 100644
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index 051dd944..de2b3f09 100644
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diff --git a/api-gateway/price-microservice/pom.xml b/api-gateway/price-microservice/pom.xml
index 38f7a708..8a9a6f37 100644
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diff --git a/async-method-invocation/pom.xml b/async-method-invocation/pom.xml
index 8f4f45ed..dc5b6440 100644
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diff --git a/builder/pom.xml b/builder/pom.xml
index e8140f6f..305de70b 100644
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index 13b91173..d5fde8ea 100644
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diff --git a/caching/pom.xml b/caching/pom.xml
index 5117d3a5..6d866eb0 100644
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index 54f8b046..2b8d1fec 100644
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index d908f29b..81aaf7e1 100644
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diff --git a/command/pom.xml b/command/pom.xml
index 01cc6d05..e50be3e3 100644
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diff --git a/composite/pom.xml b/composite/pom.xml
index 0ae7194c..10750296 100644
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diff --git a/dao/pom.xml b/dao/pom.xml
index f4aa88b0..374a1c14 100644
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diff --git a/data-mapper/pom.xml b/data-mapper/pom.xml
index 3b43f845..c23868a4 100644
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diff --git a/decorator/pom.xml b/decorator/pom.xml
index 69415e21..51684065 100644
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index 2eaf1364..cf034902 100644
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diff --git a/dependency-injection/pom.xml b/dependency-injection/pom.xml
index 282cd73f..603bb2c0 100644
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index 562f5809..0b0541b8 100644
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index d9d10b28..b15e76f8 100644
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diff --git a/event-aggregator/pom.xml b/event-aggregator/pom.xml
index be2e84bb..3bf8c281 100644
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diff --git a/event-asynchronous/pom.xml b/event-asynchronous/pom.xml
index 2a442e2d..9fecfa60 100644
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diff --git a/event-driven-architecture/pom.xml b/event-driven-architecture/pom.xml
index 1db5e283..2ced1abd 100644
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diff --git a/execute-around/pom.xml b/execute-around/pom.xml
index 5aaf1887..acc36b4b 100644
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diff --git a/facade/pom.xml b/facade/pom.xml
index 4df1f50d..0f1fa868 100644
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diff --git a/factory-kit/pom.xml b/factory-kit/pom.xml
index 682188ab..f356fc3b 100644
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index 4a64b961..d6359ff0 100644
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index 2dce8c7e..e2635f22 100644
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index ab656bd7..8d815079 100644
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diff --git a/flux/pom.xml b/flux/pom.xml
index ec25ff61..aa0c9579 100644
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index f787ef61..2c210a0c 100644
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index c50bffb4..11802d2f 100644
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diff --git a/half-sync-half-async/pom.xml b/half-sync-half-async/pom.xml
index bb06214a..4b3285ff 100644
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index 5d23fb72..2cf88b62 100644
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index 08655132..2c23edff 100644
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index 39e0c242..a932e10b 100644
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index 97634e66..3fcdd985 100644
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diff --git a/lazy-loading/pom.xml b/lazy-loading/pom.xml
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-    <version>1.14.0</version>
+    <version>1.15.0-SNAPSHOT</version>
   </parent>
   <artifactId>lazy-loading</artifactId>
   <dependencies>
diff --git a/mediator/pom.xml b/mediator/pom.xml
index e7fbebd3..b9fda50a 100644
--- a/mediator/pom.xml
+++ b/mediator/pom.xml
@@ -29,7 +29,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.14.0</version>
+    <version>1.15.0-SNAPSHOT</version>
   </parent>
   <artifactId>mediator</artifactId>
   <dependencies>
diff --git a/memento/pom.xml b/memento/pom.xml
index 25482d3b..e6cd095d 100644
--- a/memento/pom.xml
+++ b/memento/pom.xml
@@ -29,7 +29,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.14.0</version>
+    <version>1.15.0-SNAPSHOT</version>
   </parent>
   <artifactId>memento</artifactId>
   <dependencies>
diff --git a/message-channel/pom.xml b/message-channel/pom.xml
index f98e816d..98b2a0c2 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>1.14.0</version>
+		<version>1.15.0-SNAPSHOT</version>
 	</parent>
 	<artifactId>message-channel</artifactId>
 	<dependencies>
diff --git a/model-view-controller/pom.xml b/model-view-controller/pom.xml
index 2bf38c8c..29823d9e 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>1.14.0</version>
+    <version>1.15.0-SNAPSHOT</version>
   </parent>
   <artifactId>model-view-controller</artifactId>
   <dependencies>
diff --git a/model-view-presenter/pom.xml b/model-view-presenter/pom.xml
index 06ebedc9..6c43a004 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>1.14.0</version>
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   </parent>
   <artifactId>model-view-presenter</artifactId>
   <name>model-view-presenter</name>
diff --git a/module/pom.xml b/module/pom.xml
index 6349efb5..8920916c 100644
--- a/module/pom.xml
+++ b/module/pom.xml
@@ -28,7 +28,7 @@
 	<parent>
 		<groupId>com.iluwatar</groupId>
 		<artifactId>java-design-patterns</artifactId>
-		<version>1.14.0</version>
+		<version>1.15.0-SNAPSHOT</version>
 	</parent>
 	<artifactId>module</artifactId>
 	<dependencies>
diff --git a/monad/pom.xml b/monad/pom.xml
index f310c34c..63d6431d 100644
--- a/monad/pom.xml
+++ b/monad/pom.xml
@@ -29,7 +29,7 @@
     <parent>
         <groupId>com.iluwatar</groupId>
         <artifactId>java-design-patterns</artifactId>
-        <version>1.14.0</version>
+        <version>1.15.0-SNAPSHOT</version>
     </parent>
     <artifactId>monad</artifactId>
     <dependencies>
diff --git a/monostate/pom.xml b/monostate/pom.xml
index 956c51f1..bc025fde 100644
--- a/monostate/pom.xml
+++ b/monostate/pom.xml
@@ -29,7 +29,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.14.0</version>
+    <version>1.15.0-SNAPSHOT</version>
   </parent>
   <artifactId>monostate</artifactId>
   <dependencies>
diff --git a/multiton/pom.xml b/multiton/pom.xml
index 616f1dd6..34cc4ae8 100644
--- a/multiton/pom.xml
+++ b/multiton/pom.xml
@@ -29,7 +29,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.14.0</version>
+    <version>1.15.0-SNAPSHOT</version>
   </parent>
   <artifactId>multiton</artifactId>
   <dependencies>
diff --git a/mute-idiom/pom.xml b/mute-idiom/pom.xml
index a099e8e0..d68b016f 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>1.14.0</version>
+		<version>1.15.0-SNAPSHOT</version>
 	</parent>
 	<artifactId>mute-idiom</artifactId>
 	<dependencies>
diff --git a/mutex/pom.xml b/mutex/pom.xml
index 1a4679c4..d42a2fda 100644
--- a/mutex/pom.xml
+++ b/mutex/pom.xml
@@ -29,7 +29,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.14.0</version>
+    <version>1.15.0-SNAPSHOT</version>
   </parent>
   <artifactId>mutex</artifactId>
   <dependencies>
diff --git a/naked-objects/dom/pom.xml b/naked-objects/dom/pom.xml
index 00535901..39560b5c 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>1.14.0</version>
+		<version>1.15.0-SNAPSHOT</version>
 	</parent>
 
 	<artifactId>naked-objects-dom</artifactId>
diff --git a/naked-objects/fixture/pom.xml b/naked-objects/fixture/pom.xml
index f8613cf7..a96c2462 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>1.14.0</version>
+		<version>1.15.0-SNAPSHOT</version>
 	</parent>
 
 	<artifactId>naked-objects-fixture</artifactId>
diff --git a/naked-objects/integtests/pom.xml b/naked-objects/integtests/pom.xml
index aec9fd16..32ec4cd6 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>1.14.0</version>
+		<version>1.15.0-SNAPSHOT</version>
 	</parent>
 
 	<artifactId>naked-objects-integtests</artifactId>
diff --git a/naked-objects/pom.xml b/naked-objects/pom.xml
index 1253d857..d8acdc74 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>1.14.0</version>
+		<version>1.15.0-SNAPSHOT</version>
 	</parent>
 
 	<artifactId>naked-objects</artifactId>
@@ -367,17 +367,17 @@
 			<dependency>
 				<groupId>${project.groupId}</groupId>
 				<artifactId>naked-objects-dom</artifactId>
-				<version>1.14.0</version>
+				<version>1.15.0-SNAPSHOT</version>
 			</dependency>
 			<dependency>
 				<groupId>${project.groupId}</groupId>
 				<artifactId>naked-objects-fixture</artifactId>
-				<version>1.14.0</version>
+				<version>1.15.0-SNAPSHOT</version>
 			</dependency>
 			<dependency>
 				<groupId>${project.groupId}</groupId>
 				<artifactId>naked-objects-webapp</artifactId>
-				<version>1.14.0</version>
+				<version>1.15.0-SNAPSHOT</version>
 			</dependency>
 
 		</dependencies>
diff --git a/naked-objects/webapp/pom.xml b/naked-objects/webapp/pom.xml
index 3fad91c7..7e6d3ffc 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>1.14.0</version>
+		<version>1.15.0-SNAPSHOT</version>
 	</parent>
 
 	<artifactId>naked-objects-webapp</artifactId>
diff --git a/null-object/pom.xml b/null-object/pom.xml
index 5843b9dd..2c494e3b 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>1.14.0</version>
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   </parent>
   <artifactId>null-object</artifactId>
   <dependencies>
diff --git a/object-mother/pom.xml b/object-mother/pom.xml
index 325f8133..fc7d96a8 100644
--- a/object-mother/pom.xml
+++ b/object-mother/pom.xml
@@ -30,7 +30,7 @@
     <parent>
         <groupId>com.iluwatar</groupId>
         <artifactId>java-design-patterns</artifactId>
-        <version>1.14.0</version>
+        <version>1.15.0-SNAPSHOT</version>
     </parent>
     <artifactId>object-mother</artifactId>
     <dependencies>
diff --git a/object-pool/pom.xml b/object-pool/pom.xml
index f501621f..19ac4895 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>1.14.0</version>
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   </parent>
   <artifactId>object-pool</artifactId>
   <dependencies>
diff --git a/observer/pom.xml b/observer/pom.xml
index de26431c..bb313552 100644
--- a/observer/pom.xml
+++ b/observer/pom.xml
@@ -29,7 +29,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
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   </parent>
   <artifactId>observer</artifactId>
   <dependencies>
diff --git a/page-object/pom.xml b/page-object/pom.xml
index ed34129c..35ee916a 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>1.14.0</version>
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     </parent>
     <artifactId>page-object</artifactId>
     <dependencies>
diff --git a/poison-pill/pom.xml b/poison-pill/pom.xml
index 672c465b..e518649c 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>1.14.0</version>
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   </parent>
   <artifactId>poison-pill</artifactId>
   <dependencies>
diff --git a/pom.xml b/pom.xml
index 29764d4b..5ddd3bf9 100644
--- a/pom.xml
+++ b/pom.xml
@@ -21,7 +21,7 @@
     <modelVersion>4.0.0</modelVersion>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.14.0</version>
+    <version>1.15.0-SNAPSHOT</version>
     <packaging>pom</packaging>
     <inceptionYear>2014</inceptionYear>
     <properties>
diff --git a/private-class-data/pom.xml b/private-class-data/pom.xml
index 40b0f478..957e1803 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>1.14.0</version>
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   </parent>
   <artifactId>private-class-data</artifactId>
   <dependencies>
diff --git a/producer-consumer/pom.xml b/producer-consumer/pom.xml
index 4d21bfd5..dbc80614 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>1.14.0</version>
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   </parent>
   <artifactId>producer-consumer</artifactId>
   <dependencies>
diff --git a/promise/pom.xml b/promise/pom.xml
index da8c91f0..a93ef2ba 100644
--- a/promise/pom.xml
+++ b/promise/pom.xml
@@ -29,7 +29,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.14.0</version>
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   </parent>
   <artifactId>promise</artifactId>
   <dependencies>
diff --git a/property/pom.xml b/property/pom.xml
index c9fa0f39..4b28b9f5 100644
--- a/property/pom.xml
+++ b/property/pom.xml
@@ -29,7 +29,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.14.0</version>
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   </parent>
   <artifactId>property</artifactId>
   <dependencies>
diff --git a/prototype/pom.xml b/prototype/pom.xml
index 1f2da1b3..995757d5 100644
--- a/prototype/pom.xml
+++ b/prototype/pom.xml
@@ -29,7 +29,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.14.0</version>
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   </parent>
   <artifactId>prototype</artifactId>
   <dependencies>
diff --git a/proxy/pom.xml b/proxy/pom.xml
index 18b39e55..f12db724 100644
--- a/proxy/pom.xml
+++ b/proxy/pom.xml
@@ -29,7 +29,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.14.0</version>
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   </parent>
   <artifactId>proxy</artifactId>
   <dependencies>
diff --git a/publish-subscribe/pom.xml b/publish-subscribe/pom.xml
index 9f861f5c..1586815c 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>1.14.0</version>
+		<version>1.15.0-SNAPSHOT</version>
 	</parent>
 	<artifactId>publish-subscribe</artifactId>
 	<dependencies>
diff --git a/queue-load-leveling/pom.xml b/queue-load-leveling/pom.xml
index e895fd2f..351f9490 100644
--- a/queue-load-leveling/pom.xml
+++ b/queue-load-leveling/pom.xml
@@ -29,7 +29,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.14.0</version>
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   </parent>
   <artifactId>queue-load-leveling</artifactId>
   <dependencies>
diff --git a/reactor/pom.xml b/reactor/pom.xml
index 569bd0bd..1d3aa22e 100644
--- a/reactor/pom.xml
+++ b/reactor/pom.xml
@@ -29,7 +29,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.14.0</version>
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   </parent>
   <artifactId>reactor</artifactId>
   <dependencies>
diff --git a/reader-writer-lock/pom.xml b/reader-writer-lock/pom.xml
index 6c897235..a46f6f5b 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>
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     <artifactId>reader-writer-lock</artifactId>
     <dependencies>
diff --git a/repository/pom.xml b/repository/pom.xml
index 5e430296..5cae0466 100644
--- a/repository/pom.xml
+++ b/repository/pom.xml
@@ -29,7 +29,7 @@
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         <groupId>com.iluwatar</groupId>
         <artifactId>java-design-patterns</artifactId>
-        <version>1.14.0</version>
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     <artifactId>repository</artifactId>
     <dependencies>
diff --git a/resource-acquisition-is-initialization/pom.xml b/resource-acquisition-is-initialization/pom.xml
index b96f3b67..ecf304ad 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>1.14.0</version>
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   <artifactId>resource-acquisition-is-initialization</artifactId>
   <dependencies>
diff --git a/semaphore/pom.xml b/semaphore/pom.xml
index 1542cb0f..34b6bf62 100644
--- a/semaphore/pom.xml
+++ b/semaphore/pom.xml
@@ -29,7 +29,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
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   <artifactId>semaphore</artifactId>
   <dependencies>
diff --git a/servant/pom.xml b/servant/pom.xml
index ef47754d..fc59c795 100644
--- a/servant/pom.xml
+++ b/servant/pom.xml
@@ -29,7 +29,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.14.0</version>
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   </parent>
   <artifactId>servant</artifactId>
   <dependencies>
diff --git a/service-layer/pom.xml b/service-layer/pom.xml
index 0149d7fb..3d9e5e26 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>1.14.0</version>
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   </parent>
   <artifactId>service-layer</artifactId>
   <dependencies>
diff --git a/service-locator/pom.xml b/service-locator/pom.xml
index a1ae8ed6..397955f8 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>
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   <artifactId>service-locator</artifactId>
   <dependencies>
diff --git a/singleton/pom.xml b/singleton/pom.xml
index 31e492fe..8ddcb213 100644
--- a/singleton/pom.xml
+++ b/singleton/pom.xml
@@ -29,7 +29,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
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   <artifactId>singleton</artifactId>
   <dependencies>
diff --git a/specification/pom.xml b/specification/pom.xml
index 6f652088..40584b7c 100644
--- a/specification/pom.xml
+++ b/specification/pom.xml
@@ -29,7 +29,7 @@
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     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
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   <artifactId>specification</artifactId>
   <dependencies>
diff --git a/state/pom.xml b/state/pom.xml
index 9fb92b77..18a2608c 100644
--- a/state/pom.xml
+++ b/state/pom.xml
@@ -29,7 +29,7 @@
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     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
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   <artifactId>state</artifactId>
   <dependencies>
diff --git a/step-builder/pom.xml b/step-builder/pom.xml
index 2d3c20f1..b33f48fb 100644
--- a/step-builder/pom.xml
+++ b/step-builder/pom.xml
@@ -30,7 +30,7 @@
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     <groupId>com.iluwatar</groupId>
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   <artifactId>step-builder</artifactId>
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diff --git a/strategy/pom.xml b/strategy/pom.xml
index bad2e34e..c4728122 100644
--- a/strategy/pom.xml
+++ b/strategy/pom.xml
@@ -29,7 +29,7 @@
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     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
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+    <version>1.15.0-SNAPSHOT</version>
   </parent>
   <artifactId>strategy</artifactId>
   <dependencies>
diff --git a/template-method/pom.xml b/template-method/pom.xml
index 7a021fbf..4a40c89f 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>
-    <version>1.14.0</version>
+    <version>1.15.0-SNAPSHOT</version>
   </parent>
   <artifactId>template-method</artifactId>
   <dependencies>
diff --git a/thread-pool/pom.xml b/thread-pool/pom.xml
index ca53a90d..a3b8d1fe 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>
-    <version>1.14.0</version>
+    <version>1.15.0-SNAPSHOT</version>
   </parent>
   <artifactId>thread-pool</artifactId>
   <dependencies>
diff --git a/tolerant-reader/pom.xml b/tolerant-reader/pom.xml
index 68c8ce46..da580631 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>1.14.0</version>
+    <version>1.15.0-SNAPSHOT</version>
   </parent>
   <artifactId>tolerant-reader</artifactId>
   <dependencies>
diff --git a/twin/pom.xml b/twin/pom.xml
index 77bf8de9..b9f6fb6e 100644
--- a/twin/pom.xml
+++ b/twin/pom.xml
@@ -29,7 +29,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.14.0</version>
+    <version>1.15.0-SNAPSHOT</version>
   </parent>
   <artifactId>twin</artifactId>
   <dependencies>
diff --git a/value-object/pom.xml b/value-object/pom.xml
index bd210346..ae18ed94 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>1.14.0</version>
+		<version>1.15.0-SNAPSHOT</version>
 	</parent>
 	<artifactId>value-object</artifactId>
 	<dependencies>
diff --git a/visitor/pom.xml b/visitor/pom.xml
index 2c7fff55..2aeeb73b 100644
--- a/visitor/pom.xml
+++ b/visitor/pom.xml
@@ -29,7 +29,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.14.0</version>
+    <version>1.15.0-SNAPSHOT</version>
   </parent>
   <artifactId>visitor</artifactId>
   <dependencies>