diff --git a/distribution/pom.xml b/distribution/pom.xml
index b230b190b0a7694caba2e3d23de94ebf019f32e7..cdf44e21c29bd615d54978d1bb04197194254564 100644
--- a/distribution/pom.xml
+++ b/distribution/pom.xml
@@ -6,19 +6,19 @@
 	
 	<groupId>de.sekmi.histream</groupId>
 	<artifactId>distribution</artifactId>
-	<version>0.6-SNAPSHOT</version>
+	<version>0.5</version>
 
 	<parent>
 		<groupId>de.sekmi.histream</groupId>
 		<artifactId>histream</artifactId>
-		<version>0.6-SNAPSHOT</version>
+		<version>0.5</version>
 	</parent>
   
 	<dependencies>
 		<dependency>
 			<groupId>de.sekmi.histream</groupId>
 			<artifactId>histream-core</artifactId>
-			<version>0.6-SNAPSHOT</version>
+			<version>0.5</version>
 		</dependency>
 	</dependencies>
 
diff --git a/histream-core/pom.xml b/histream-core/pom.xml
index d4bcaecc0137ef5f0829c5243391cd8e9bf33e7b..693b302ab30cf2dbf892797be6ed5704f6c17ae5 100644
--- a/histream-core/pom.xml
+++ b/histream-core/pom.xml
@@ -4,12 +4,12 @@
 
 	<groupId>de.sekmi.histream</groupId>
 	<artifactId>histream-core</artifactId>
-	<version>0.6-SNAPSHOT</version>
+	<version>0.5</version>
 
 	<parent>
 		<groupId>de.sekmi.histream</groupId>
 		<artifactId>histream</artifactId>
-		<version>0.6-SNAPSHOT</version>
+		<version>0.5</version>
 	</parent>
   
 	<build>
diff --git a/histream-i2b2/pom.xml b/histream-i2b2/pom.xml
index 3f945b753c856097d0d460e01017967b9370a1ac..ff43241290a6f12801747a6dd89eb78ce3f5ad0c 100644
--- a/histream-i2b2/pom.xml
+++ b/histream-i2b2/pom.xml
@@ -4,12 +4,12 @@
 	
 	<groupId>de.sekmi.histream</groupId>
 	<artifactId>histream-i2b2</artifactId>
-	<version>0.6-SNAPSHOT</version>
+	<version>0.5</version>
 
 	<parent>
 		<groupId>de.sekmi.histream</groupId>
 		<artifactId>histream</artifactId>
-		<version>0.6-SNAPSHOT</version>
+		<version>0.5</version>
 	</parent>
   
 	<build>
@@ -31,7 +31,7 @@
 		<dependency>
 			<groupId>de.sekmi.histream</groupId>
 			<artifactId>histream-core</artifactId>
-			<version>0.6-SNAPSHOT</version>
+			<version>0.5</version>
 		</dependency>
 	</dependencies>
 </project>
\ No newline at end of file
diff --git a/histream-import/pom.xml b/histream-import/pom.xml
index a53304279e641eb7e268e5d9c5cdaeda9a2af7c0..0f92995bd429479b692f45de596343268b456785 100644
--- a/histream-import/pom.xml
+++ b/histream-import/pom.xml
@@ -4,12 +4,12 @@
 
 	<groupId>de.sekmi.histream</groupId>
 	<artifactId>histream-import</artifactId>
-	<version>0.6-SNAPSHOT</version>
+	<version>0.5</version>
 
 	<parent>
 		<groupId>de.sekmi.histream</groupId>
 		<artifactId>histream</artifactId>
-		<version>0.6-SNAPSHOT</version>
+		<version>0.5</version>
 	</parent>
 	
 	<properties>
@@ -45,7 +45,7 @@
 		<dependency>
 			<groupId>de.sekmi.histream</groupId>
 			<artifactId>histream-core</artifactId>
-			<version>0.6-SNAPSHOT</version>
+			<version>0.5</version>
 		</dependency>
 		<dependency>
 			<groupId>junit</groupId>
diff --git a/histream-skos/pom.xml b/histream-skos/pom.xml
index 80a399b4059f1005509e0b4fb0c60f4fbbc378eb..72d008a1025f456194f20d0be46684ec9512f8a9 100644
--- a/histream-skos/pom.xml
+++ b/histream-skos/pom.xml
@@ -4,12 +4,12 @@
 	
 	<groupId>de.sekmi.histream</groupId>
 	<artifactId>histream-skos</artifactId>
-	<version>0.6-SNAPSHOT</version>
+	<version>0.5</version>
 
 	<parent>
 		<groupId>de.sekmi.histream</groupId>
 		<artifactId>histream</artifactId>
-		<version>0.6-SNAPSHOT</version>
+		<version>0.5</version>
 	</parent>
   
 	<build>
@@ -20,7 +20,7 @@
 		<dependency>
 			<groupId>de.sekmi.histream</groupId>
 			<artifactId>histream-core</artifactId>
-			<version>0.6-SNAPSHOT</version>
+			<version>0.5</version>
 		</dependency>
 		<!-- test dependencies -->
 		<dependency>
@@ -32,7 +32,7 @@
 		<dependency>
 			<groupId>de.sekmi.histream</groupId>
 			<artifactId>histream-core</artifactId>
-			<version>0.6-SNAPSHOT</version>
+			<version>0.5</version>
 			<type>test-jar</type>
 			<scope>test</scope>
 		</dependency>
diff --git a/i2b2-integration-tests/pom.xml b/i2b2-integration-tests/pom.xml
index 74a6e871f8ed522a4658890e17be90ee1b800a1e..cb5b96546edf8ed0bbd39db53f39191a65422e19 100644
--- a/i2b2-integration-tests/pom.xml
+++ b/i2b2-integration-tests/pom.xml
@@ -3,12 +3,12 @@
 	
 	<groupId>de.sekmi.histream</groupId>
 	<artifactId>i2b2-intregration-tests</artifactId>
-	<version>0.6-SNAPSHOT</version>
+	<version>0.5</version>
 
 	<parent>
 		<groupId>de.sekmi.histream</groupId>
 		<artifactId>histream</artifactId>
-		<version>0.6-SNAPSHOT</version>
+		<version>0.5</version>
 	</parent>
 
 	<name>HIStream : i2b2 integration tests</name>
@@ -44,22 +44,22 @@
 		<dependency>
 			<groupId>de.sekmi.histream</groupId>
 			<artifactId>histream-i2b2</artifactId>
-			<version>0.6-SNAPSHOT</version>
+			<version>0.5</version>
 		</dependency>
 		<dependency>
 			<groupId>de.sekmi.histream</groupId>
 			<artifactId>histream-skos</artifactId>
-			<version>0.6-SNAPSHOT</version>
+			<version>0.5</version>
 		</dependency>
 		<dependency>
 			<groupId>de.sekmi.histream</groupId>
 			<artifactId>histream-import</artifactId>
-			<version>0.6-SNAPSHOT</version>
+			<version>0.5</version>
 		</dependency>
 		<dependency>
 			<groupId>de.sekmi.histream</groupId>
 			<artifactId>histream-import</artifactId>
-			<version>0.6-SNAPSHOT</version>
+			<version>0.5</version>
 			<type>test-jar</type>
 			<scope>test</scope>
 		</dependency>
diff --git a/pom.xml b/pom.xml
index 127bebbfc745ad7c694741f4a1f2e7bf160964c0..250aa1d1a1e0f304aa40efefbf7c29affa0654f9 100644
--- a/pom.xml
+++ b/pom.xml
@@ -4,7 +4,7 @@
 	
 	<groupId>de.sekmi.histream</groupId>
 	<artifactId>histream</artifactId>
-	<version>0.6-SNAPSHOT</version>
+	<version>0.5</version>
   
 	<name>HIStream</name>
 	<description>Real-time stream based decision support system</description>
@@ -25,7 +25,7 @@
 	<scm>
 		<connection>scm:git:git@gitlab.uni-oldenburg.de:rwmajeed/histream.git</connection>
 		<developerConnection>scm:git:git@gitlab.uni-oldenburg.de:rwmajeed/histream.git</developerConnection>
-		<tag>HEAD</tag>
+		<tag>histream-0.5</tag>
 		<url>https://gitlab.uni-oldenburg.de/rwmajeed/histream/tree/master</url>
 	</scm>
 	<distributionManagement>