diff --git a/abstract-factory/pom.xml b/abstract-factory/pom.xml
index f8c7fa10..6e0055db 100644
--- a/abstract-factory/pom.xml
+++ b/abstract-factory/pom.xml
@@ -5,7 +5,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.8.0-SNAPSHOT</version>
+    <version>1.8.0</version>
   </parent>
   <artifactId>abstract-factory</artifactId>
   <dependencies>
diff --git a/adapter/pom.xml b/adapter/pom.xml
index ddb81441..52a5cef4 100644
--- a/adapter/pom.xml
+++ b/adapter/pom.xml
@@ -5,7 +5,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.8.0-SNAPSHOT</version>
+    <version>1.8.0</version>
   </parent>
   <artifactId>adapter</artifactId>
   <dependencies>
diff --git a/async-method-invocation/pom.xml b/async-method-invocation/pom.xml
index 87dd343a..3853ea93 100644
--- a/async-method-invocation/pom.xml
+++ b/async-method-invocation/pom.xml
@@ -5,7 +5,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.8.0-SNAPSHOT</version>
+    <version>1.8.0</version>
   </parent>
   <artifactId>async-method-invocation</artifactId>
   <dependencies>
diff --git a/bridge/pom.xml b/bridge/pom.xml
index c17b482a..644fa7ad 100644
--- a/bridge/pom.xml
+++ b/bridge/pom.xml
@@ -5,7 +5,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.8.0-SNAPSHOT</version>
+    <version>1.8.0</version>
   </parent>
   <artifactId>bridge</artifactId>
   <dependencies>
diff --git a/builder/pom.xml b/builder/pom.xml
index f26494b2..a6a599cc 100644
--- a/builder/pom.xml
+++ b/builder/pom.xml
@@ -5,7 +5,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.8.0-SNAPSHOT</version>
+    <version>1.8.0</version>
   </parent>
   <artifactId>builder</artifactId>
   <dependencies>
diff --git a/business-delegate/pom.xml b/business-delegate/pom.xml
index d07f2c0a..64ef756e 100644
--- a/business-delegate/pom.xml
+++ b/business-delegate/pom.xml
@@ -6,7 +6,7 @@
 	<parent>
 		<groupId>com.iluwatar</groupId>
 		<artifactId>java-design-patterns</artifactId>
-		<version>1.8.0-SNAPSHOT</version>
+		<version>1.8.0</version>
 	</parent>
 	<artifactId>business-delegate</artifactId>
 	<dependencies>
diff --git a/caching/pom.xml b/caching/pom.xml
index e61b8ab8..32729861 100644
--- a/caching/pom.xml
+++ b/caching/pom.xml
@@ -5,7 +5,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.8.0-SNAPSHOT</version>
+    <version>1.8.0</version>
   </parent>
   <artifactId>caching</artifactId>
   <dependencies>
diff --git a/callback/pom.xml b/callback/pom.xml
index dc12efb6..3149fd21 100644
--- a/callback/pom.xml
+++ b/callback/pom.xml
@@ -5,7 +5,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.8.0-SNAPSHOT</version>
+    <version>1.8.0</version>
   </parent>
   <artifactId>callback</artifactId>
   <dependencies>
diff --git a/chain/pom.xml b/chain/pom.xml
index 1c044f7e..eb204c86 100644
--- a/chain/pom.xml
+++ b/chain/pom.xml
@@ -5,7 +5,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.8.0-SNAPSHOT</version>
+    <version>1.8.0</version>
   </parent>
   <artifactId>chain</artifactId>
   <dependencies>
diff --git a/command/pom.xml b/command/pom.xml
index 6001ebc3..2a2a678f 100644
--- a/command/pom.xml
+++ b/command/pom.xml
@@ -5,7 +5,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.8.0-SNAPSHOT</version>
+    <version>1.8.0</version>
   </parent>
   <artifactId>command</artifactId>
   <dependencies>
diff --git a/composite/pom.xml b/composite/pom.xml
index 15510806..bab87ed6 100644
--- a/composite/pom.xml
+++ b/composite/pom.xml
@@ -5,7 +5,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.8.0-SNAPSHOT</version>
+    <version>1.8.0</version>
   </parent>
   <artifactId>composite</artifactId>
   <dependencies>
diff --git a/dao/pom.xml b/dao/pom.xml
index 3134dad9..2e4bab05 100644
--- a/dao/pom.xml
+++ b/dao/pom.xml
@@ -6,7 +6,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.8.0-SNAPSHOT</version>
+    <version>1.8.0</version>
   </parent>
   <artifactId>dao</artifactId>
 
diff --git a/decorator/pom.xml b/decorator/pom.xml
index 04403768..42197b94 100644
--- a/decorator/pom.xml
+++ b/decorator/pom.xml
@@ -5,7 +5,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.8.0-SNAPSHOT</version>
+    <version>1.8.0</version>
   </parent>
   <artifactId>decorator</artifactId>
   <dependencies>
diff --git a/dependency-injection/pom.xml b/dependency-injection/pom.xml
index b05451af..2266d252 100644
--- a/dependency-injection/pom.xml
+++ b/dependency-injection/pom.xml
@@ -5,7 +5,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.8.0-SNAPSHOT</version>
+    <version>1.8.0</version>
   </parent>
   <artifactId>dependency-injection</artifactId>
   <dependencies>
diff --git a/double-checked-locking/pom.xml b/double-checked-locking/pom.xml
index a9c0f220..fade078e 100644
--- a/double-checked-locking/pom.xml
+++ b/double-checked-locking/pom.xml
@@ -3,7 +3,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.8.0-SNAPSHOT</version>
+    <version>1.8.0</version>
   </parent>
   <artifactId>double-checked-locking</artifactId>
   <dependencies>
diff --git a/double-dispatch/pom.xml b/double-dispatch/pom.xml
index 290ddb68..32089a7b 100644
--- a/double-dispatch/pom.xml
+++ b/double-dispatch/pom.xml
@@ -5,7 +5,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.8.0-SNAPSHOT</version>
+    <version>1.8.0</version>
   </parent>
   <artifactId>double-dispatch</artifactId>
   <dependencies>
diff --git a/event-aggregator/pom.xml b/event-aggregator/pom.xml
index d5001f99..eeabcc78 100644
--- a/event-aggregator/pom.xml
+++ b/event-aggregator/pom.xml
@@ -4,7 +4,7 @@
 	<parent>
 		<groupId>com.iluwatar</groupId>
 		<artifactId>java-design-patterns</artifactId>
-		<version>1.8.0-SNAPSHOT</version>
+		<version>1.8.0</version>
 	</parent>
 	<artifactId>event-aggregator</artifactId>
 	<dependencies>
diff --git a/execute-around/pom.xml b/execute-around/pom.xml
index dae6a4da..fb0d1a91 100644
--- a/execute-around/pom.xml
+++ b/execute-around/pom.xml
@@ -5,7 +5,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.8.0-SNAPSHOT</version>
+    <version>1.8.0</version>
   </parent>
   <artifactId>execute-around</artifactId>
   <dependencies>
diff --git a/facade/pom.xml b/facade/pom.xml
index 4447cc03..ea7914ca 100644
--- a/facade/pom.xml
+++ b/facade/pom.xml
@@ -5,7 +5,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.8.0-SNAPSHOT</version>
+    <version>1.8.0</version>
   </parent>
   <artifactId>facade</artifactId>
   <dependencies>
diff --git a/factory-method/pom.xml b/factory-method/pom.xml
index 97c1c568..a20fbf5b 100644
--- a/factory-method/pom.xml
+++ b/factory-method/pom.xml
@@ -5,7 +5,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.8.0-SNAPSHOT</version>
+    <version>1.8.0</version>
   </parent>
   <artifactId>factory-method</artifactId>
   <dependencies>
diff --git a/fluentinterface/pom.xml b/fluentinterface/pom.xml
index 48ec0816..9b4aa1d5 100644
--- a/fluentinterface/pom.xml
+++ b/fluentinterface/pom.xml
@@ -5,7 +5,7 @@
     <parent>
         <artifactId>java-design-patterns</artifactId>
         <groupId>com.iluwatar</groupId>
-        <version>1.8.0-SNAPSHOT</version>
+        <version>1.8.0</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/flux/pom.xml b/flux/pom.xml
index 28a634ce..39142cbe 100644
--- a/flux/pom.xml
+++ b/flux/pom.xml
@@ -5,7 +5,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.8.0-SNAPSHOT</version>
+    <version>1.8.0</version>
   </parent>
   <artifactId>flux</artifactId>
   <dependencies>
diff --git a/flyweight/pom.xml b/flyweight/pom.xml
index 3aa89d15..2ad8fb72 100644
--- a/flyweight/pom.xml
+++ b/flyweight/pom.xml
@@ -5,7 +5,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.8.0-SNAPSHOT</version>
+    <version>1.8.0</version>
   </parent>
   <artifactId>flyweight</artifactId>
   <dependencies>
diff --git a/front-controller/pom.xml b/front-controller/pom.xml
index 5b0ef215..32dc2dbc 100644
--- a/front-controller/pom.xml
+++ b/front-controller/pom.xml
@@ -6,7 +6,7 @@
 	<parent>
 		<groupId>com.iluwatar</groupId>
 		<artifactId>java-design-patterns</artifactId>
-		<version>1.8.0-SNAPSHOT</version>
+		<version>1.8.0</version>
 	</parent>
 	<artifactId>front-controller</artifactId>
 	<dependencies>
diff --git a/half-sync-half-async/pom.xml b/half-sync-half-async/pom.xml
index e7a27c32..17ad3d79 100644
--- a/half-sync-half-async/pom.xml
+++ b/half-sync-half-async/pom.xml
@@ -5,7 +5,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.8.0-SNAPSHOT</version>
+    <version>1.8.0</version>
   </parent>
   <artifactId>half-sync-half-async</artifactId>
   <dependencies>
diff --git a/intercepting-filter/pom.xml b/intercepting-filter/pom.xml
index 1f1d89e9..041f4a50 100644
--- a/intercepting-filter/pom.xml
+++ b/intercepting-filter/pom.xml
@@ -5,7 +5,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.8.0-SNAPSHOT</version>
+    <version>1.8.0</version>
   </parent>
   <artifactId>intercepting-filter</artifactId>
   <dependencies>
diff --git a/interpreter/pom.xml b/interpreter/pom.xml
index 863a0019..bf85b2d0 100644
--- a/interpreter/pom.xml
+++ b/interpreter/pom.xml
@@ -5,7 +5,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.8.0-SNAPSHOT</version>
+    <version>1.8.0</version>
   </parent>
   <artifactId>interpreter</artifactId>
   <dependencies>
diff --git a/iterator/pom.xml b/iterator/pom.xml
index 258c1e3e..02a99d1f 100644
--- a/iterator/pom.xml
+++ b/iterator/pom.xml
@@ -5,7 +5,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.8.0-SNAPSHOT</version>
+    <version>1.8.0</version>
   </parent>
   <artifactId>iterator</artifactId>
   <dependencies>
diff --git a/layers/pom.xml b/layers/pom.xml
index e338a557..9bb03250 100644
--- a/layers/pom.xml
+++ b/layers/pom.xml
@@ -6,7 +6,7 @@
 	<parent>
 		<groupId>com.iluwatar</groupId>
 		<artifactId>java-design-patterns</artifactId>
-		<version>1.8.0-SNAPSHOT</version>
+		<version>1.8.0</version>
 	</parent>
 	<groupId>com.iluwatar.layers</groupId>
 	<artifactId>layers</artifactId>
diff --git a/lazy-loading/pom.xml b/lazy-loading/pom.xml
index eafc0f55..de587d30 100644
--- a/lazy-loading/pom.xml
+++ b/lazy-loading/pom.xml
@@ -5,7 +5,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.8.0-SNAPSHOT</version>
+    <version>1.8.0</version>
   </parent>
   <artifactId>lazy-loading</artifactId>
   <dependencies>
diff --git a/mediator/pom.xml b/mediator/pom.xml
index 60999c5a..da00bb73 100644
--- a/mediator/pom.xml
+++ b/mediator/pom.xml
@@ -5,7 +5,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.8.0-SNAPSHOT</version>
+    <version>1.8.0</version>
   </parent>
   <artifactId>mediator</artifactId>
   <dependencies>
diff --git a/memento/pom.xml b/memento/pom.xml
index 08d5c3a0..e488d035 100644
--- a/memento/pom.xml
+++ b/memento/pom.xml
@@ -5,7 +5,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.8.0-SNAPSHOT</version>
+    <version>1.8.0</version>
   </parent>
   <artifactId>memento</artifactId>
   <dependencies>
diff --git a/message-channel/pom.xml b/message-channel/pom.xml
index 0c34678a..b432e7ce 100644
--- a/message-channel/pom.xml
+++ b/message-channel/pom.xml
@@ -6,7 +6,7 @@
 	<parent>
 		<groupId>com.iluwatar</groupId>
 		<artifactId>java-design-patterns</artifactId>
-		<version>1.8.0-SNAPSHOT</version>
+		<version>1.8.0</version>
 	</parent>
 	<artifactId>message-channel</artifactId>
 	<dependencies>
diff --git a/model-view-controller/pom.xml b/model-view-controller/pom.xml
index 0f453974..064a8208 100644
--- a/model-view-controller/pom.xml
+++ b/model-view-controller/pom.xml
@@ -5,7 +5,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.8.0-SNAPSHOT</version>
+    <version>1.8.0</version>
   </parent>
   <artifactId>model-view-controller</artifactId>
   <dependencies>
diff --git a/model-view-presenter/pom.xml b/model-view-presenter/pom.xml
index 09410afc..2f8a18e4 100644
--- a/model-view-presenter/pom.xml
+++ b/model-view-presenter/pom.xml
@@ -5,7 +5,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.8.0-SNAPSHOT</version>
+    <version>1.8.0</version>
   </parent>
   <artifactId>model-view-presenter</artifactId>
   <name>model-view-presenter</name>
diff --git a/monostate/pom.xml b/monostate/pom.xml
index 7531263f..7ba3485f 100644
--- a/monostate/pom.xml
+++ b/monostate/pom.xml
@@ -5,7 +5,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.8.0-SNAPSHOT</version>
+    <version>1.8.0</version>
   </parent>
   <artifactId>monostate</artifactId>
   <dependencies>
diff --git a/multiton/pom.xml b/multiton/pom.xml
index 4cbb326e..8d76a4f8 100644
--- a/multiton/pom.xml
+++ b/multiton/pom.xml
@@ -5,7 +5,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.8.0-SNAPSHOT</version>
+    <version>1.8.0</version>
   </parent>
   <artifactId>multiton</artifactId>
   <dependencies>
diff --git a/naked-objects/dom/pom.xml b/naked-objects/dom/pom.xml
index bd71db27..3c1ee8f9 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>1.8.0-SNAPSHOT</version>
+		<version>1.8.0</version>
 	</parent>
 
 	<artifactId>naked-objects-dom</artifactId>
diff --git a/naked-objects/fixture/pom.xml b/naked-objects/fixture/pom.xml
index 057bbb9f..e4267321 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>1.8.0-SNAPSHOT</version>
+		<version>1.8.0</version>
 	</parent>
 
 	<artifactId>naked-objects-fixture</artifactId>
diff --git a/naked-objects/integtests/pom.xml b/naked-objects/integtests/pom.xml
index 78819358..1e3c28e3 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>1.8.0-SNAPSHOT</version>
+		<version>1.8.0</version>
 	</parent>
 
 	<artifactId>naked-objects-integtests</artifactId>
diff --git a/naked-objects/pom.xml b/naked-objects/pom.xml
index aad8a360..604bfcb7 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>1.8.0-SNAPSHOT</version>
+		<version>1.8.0</version>
 	</parent>
 
 	<artifactId>naked-objects</artifactId>
@@ -350,17 +350,17 @@
 			<dependency>
 				<groupId>${project.groupId}</groupId>
 				<artifactId>naked-objects-dom</artifactId>
-				<version>1.8.0-SNAPSHOT</version>
+				<version>1.8.0</version>
 			</dependency>
 			<dependency>
 				<groupId>${project.groupId}</groupId>
 				<artifactId>naked-objects-fixture</artifactId>
-				<version>1.8.0-SNAPSHOT</version>
+				<version>1.8.0</version>
 			</dependency>
 			<dependency>
 				<groupId>${project.groupId}</groupId>
 				<artifactId>naked-objects-webapp</artifactId>
-				<version>1.8.0-SNAPSHOT</version>
+				<version>1.8.0</version>
 			</dependency>
 
 		</dependencies>
diff --git a/naked-objects/webapp/pom.xml b/naked-objects/webapp/pom.xml
index 4935bd3e..c091d4d2 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>1.8.0-SNAPSHOT</version>
+		<version>1.8.0</version>
 	</parent>
 
 	<artifactId>naked-objects-webapp</artifactId>
diff --git a/null-object/pom.xml b/null-object/pom.xml
index 597dad23..1337a8d8 100644
--- a/null-object/pom.xml
+++ b/null-object/pom.xml
@@ -5,7 +5,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.8.0-SNAPSHOT</version>
+    <version>1.8.0</version>
   </parent>
   <artifactId>null-object</artifactId>
   <dependencies>
diff --git a/object-pool/pom.xml b/object-pool/pom.xml
index 75bc894e..2abf85d3 100644
--- a/object-pool/pom.xml
+++ b/object-pool/pom.xml
@@ -5,7 +5,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.8.0-SNAPSHOT</version>
+    <version>1.8.0</version>
   </parent>
   <artifactId>object-pool</artifactId>
   <dependencies>
diff --git a/observer/pom.xml b/observer/pom.xml
index a3dd25d8..2eacdd8a 100644
--- a/observer/pom.xml
+++ b/observer/pom.xml
@@ -5,7 +5,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.8.0-SNAPSHOT</version>
+    <version>1.8.0</version>
   </parent>
   <artifactId>observer</artifactId>
   <dependencies>
diff --git a/poison-pill/pom.xml b/poison-pill/pom.xml
index 34044541..e0a31712 100644
--- a/poison-pill/pom.xml
+++ b/poison-pill/pom.xml
@@ -5,7 +5,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.8.0-SNAPSHOT</version>
+    <version>1.8.0</version>
   </parent>
   <artifactId>poison-pill</artifactId>
   <dependencies>
diff --git a/pom.xml b/pom.xml
index e6603b06..db6d47e5 100644
--- a/pom.xml
+++ b/pom.xml
@@ -5,7 +5,7 @@
 
 	<groupId>com.iluwatar</groupId>
 	<artifactId>java-design-patterns</artifactId>
-	<version>1.8.0-SNAPSHOT</version>
+	<version>1.8.0</version>
 	<packaging>pom</packaging>
 
 	<properties>
diff --git a/private-class-data/pom.xml b/private-class-data/pom.xml
index 362e061f..07f710c4 100644
--- a/private-class-data/pom.xml
+++ b/private-class-data/pom.xml
@@ -5,7 +5,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.8.0-SNAPSHOT</version>
+    <version>1.8.0</version>
   </parent>
   <artifactId>private-class-data</artifactId>
   <dependencies>
diff --git a/producer-consumer/pom.xml b/producer-consumer/pom.xml
index 57127210..feec05f9 100644
--- a/producer-consumer/pom.xml
+++ b/producer-consumer/pom.xml
@@ -5,7 +5,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.8.0-SNAPSHOT</version>
+    <version>1.8.0</version>
   </parent>
   <artifactId>producer-consumer</artifactId>
   <dependencies>
diff --git a/property/pom.xml b/property/pom.xml
index b6d10bdb..4982f723 100644
--- a/property/pom.xml
+++ b/property/pom.xml
@@ -5,7 +5,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.8.0-SNAPSHOT</version>
+    <version>1.8.0</version>
   </parent>
   <artifactId>property</artifactId>
   <dependencies>
diff --git a/prototype/pom.xml b/prototype/pom.xml
index c08e7955..d603a185 100644
--- a/prototype/pom.xml
+++ b/prototype/pom.xml
@@ -5,7 +5,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.8.0-SNAPSHOT</version>
+    <version>1.8.0</version>
   </parent>
   <artifactId>prototype</artifactId>
   <dependencies>
diff --git a/proxy/pom.xml b/proxy/pom.xml
index 0bb88bb7..fc1ce04e 100644
--- a/proxy/pom.xml
+++ b/proxy/pom.xml
@@ -5,7 +5,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.8.0-SNAPSHOT</version>
+    <version>1.8.0</version>
   </parent>
   <artifactId>proxy</artifactId>
   <dependencies>
diff --git a/publish-subscribe/pom.xml b/publish-subscribe/pom.xml
index 07d70471..316feba8 100644
--- a/publish-subscribe/pom.xml
+++ b/publish-subscribe/pom.xml
@@ -4,7 +4,7 @@
 	<parent>
 		<groupId>com.iluwatar</groupId>
 		<artifactId>java-design-patterns</artifactId>
-		<version>1.8.0-SNAPSHOT</version>
+		<version>1.8.0</version>
 	</parent>
 	<artifactId>publish-subscribe</artifactId>
 	<dependencies>
diff --git a/reactor/pom.xml b/reactor/pom.xml
index c60e8cf9..ec24caad 100644
--- a/reactor/pom.xml
+++ b/reactor/pom.xml
@@ -5,7 +5,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.8.0-SNAPSHOT</version>
+    <version>1.8.0</version>
   </parent>
   <artifactId>reactor</artifactId>
   <dependencies>
diff --git a/repository/pom.xml b/repository/pom.xml
index c3adc7a9..56531613 100644
--- a/repository/pom.xml
+++ b/repository/pom.xml
@@ -5,7 +5,7 @@
     <parent>
         <groupId>com.iluwatar</groupId>
         <artifactId>java-design-patterns</artifactId>
-        <version>1.8.0-SNAPSHOT</version>
+        <version>1.8.0</version>
     </parent>
     <artifactId>repository</artifactId>
     <dependencies>
diff --git a/resource-acquisition-is-initialization/pom.xml b/resource-acquisition-is-initialization/pom.xml
index 4b0b2cad..72c9bfa8 100644
--- a/resource-acquisition-is-initialization/pom.xml
+++ b/resource-acquisition-is-initialization/pom.xml
@@ -5,7 +5,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.8.0-SNAPSHOT</version>
+    <version>1.8.0</version>
   </parent>
   <artifactId>resource-acquisition-is-initialization</artifactId>
   <dependencies>
diff --git a/servant/pom.xml b/servant/pom.xml
index 348905d2..14fcfc45 100644
--- a/servant/pom.xml
+++ b/servant/pom.xml
@@ -5,7 +5,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.8.0-SNAPSHOT</version>
+    <version>1.8.0</version>
   </parent>
   <artifactId>servant</artifactId>
   <dependencies>
diff --git a/service-layer/pom.xml b/service-layer/pom.xml
index b188ba1d..7dfe0326 100644
--- a/service-layer/pom.xml
+++ b/service-layer/pom.xml
@@ -5,7 +5,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.8.0-SNAPSHOT</version>
+    <version>1.8.0</version>
   </parent>
   <artifactId>service-layer</artifactId>
   <dependencies>
diff --git a/service-locator/pom.xml b/service-locator/pom.xml
index f04f9199..bd9f88e9 100644
--- a/service-locator/pom.xml
+++ b/service-locator/pom.xml
@@ -5,7 +5,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.8.0-SNAPSHOT</version>
+    <version>1.8.0</version>
   </parent>
   <artifactId>service-locator</artifactId>
   <dependencies>
diff --git a/singleton/pom.xml b/singleton/pom.xml
index de316c34..2b0dee12 100644
--- a/singleton/pom.xml
+++ b/singleton/pom.xml
@@ -5,7 +5,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.8.0-SNAPSHOT</version>
+    <version>1.8.0</version>
   </parent>
   <artifactId>singleton</artifactId>
   <dependencies>
diff --git a/specification/pom.xml b/specification/pom.xml
index bf69e481..07de2669 100644
--- a/specification/pom.xml
+++ b/specification/pom.xml
@@ -5,7 +5,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.8.0-SNAPSHOT</version>
+    <version>1.8.0</version>
   </parent>
   <artifactId>specification</artifactId>
   <dependencies>
diff --git a/state/pom.xml b/state/pom.xml
index 2bd9d916..45338b27 100644
--- a/state/pom.xml
+++ b/state/pom.xml
@@ -5,7 +5,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.8.0-SNAPSHOT</version>
+    <version>1.8.0</version>
   </parent>
   <artifactId>state</artifactId>
   <dependencies>
diff --git a/step-builder/pom.xml b/step-builder/pom.xml
index d3119232..d0d36928 100644
--- a/step-builder/pom.xml
+++ b/step-builder/pom.xml
@@ -6,7 +6,7 @@
   <parent>
     <artifactId>java-design-patterns</artifactId>
     <groupId>com.iluwatar</groupId>
-    <version>1.8.0-SNAPSHOT</version>
+    <version>1.8.0</version>
   </parent>
   <artifactId>step-builder</artifactId>
   <dependencies>
diff --git a/strategy/pom.xml b/strategy/pom.xml
index 4b4448ff..66120a68 100644
--- a/strategy/pom.xml
+++ b/strategy/pom.xml
@@ -5,7 +5,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.8.0-SNAPSHOT</version>
+    <version>1.8.0</version>
   </parent>
   <artifactId>strategy</artifactId>
   <dependencies>
diff --git a/template-method/pom.xml b/template-method/pom.xml
index ecc0c4ef..68982751 100644
--- a/template-method/pom.xml
+++ b/template-method/pom.xml
@@ -5,7 +5,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.8.0-SNAPSHOT</version>
+    <version>1.8.0</version>
   </parent>
   <artifactId>template-method</artifactId>
   <dependencies>
diff --git a/thread-pool/pom.xml b/thread-pool/pom.xml
index f7938800..745b9c0a 100644
--- a/thread-pool/pom.xml
+++ b/thread-pool/pom.xml
@@ -5,7 +5,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.8.0-SNAPSHOT</version>
+    <version>1.8.0</version>
   </parent>
   <artifactId>thread-pool</artifactId>
   <dependencies>
diff --git a/tolerant-reader/pom.xml b/tolerant-reader/pom.xml
index d32006ed..eeaba2d9 100644
--- a/tolerant-reader/pom.xml
+++ b/tolerant-reader/pom.xml
@@ -5,7 +5,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.8.0-SNAPSHOT</version>
+    <version>1.8.0</version>
   </parent>
   <artifactId>tolerant-reader</artifactId>
   <dependencies>
diff --git a/twin/pom.xml b/twin/pom.xml
index c2a4b131..dd38bf15 100644
--- a/twin/pom.xml
+++ b/twin/pom.xml
@@ -5,7 +5,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.8.0-SNAPSHOT</version>
+    <version>1.8.0</version>
   </parent>
   <artifactId>twin</artifactId>
   <dependencies>
diff --git a/visitor/pom.xml b/visitor/pom.xml
index b33f9975..f9f7327a 100644
--- a/visitor/pom.xml
+++ b/visitor/pom.xml
@@ -5,7 +5,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.8.0-SNAPSHOT</version>
+    <version>1.8.0</version>
   </parent>
   <artifactId>visitor</artifactId>
   <dependencies>