diff --git a/core-test/pom.xml b/core-test/pom.xml
index 9f97d65f..f0a34723 100644
--- a/core-test/pom.xml
+++ b/core-test/pom.xml
@@ -5,7 +5,7 @@
     <parent>
         <groupId>tel.schich</groupId>
         <artifactId>javacan</artifactId>
-        <version>3.4.0-SNAPSHOT</version>
+        <version>3.4.0</version>
     </parent>
 
     <artifactId>javacan-core-test</artifactId>
diff --git a/core/pom.xml b/core/pom.xml
index 87349960..4fabce64 100644
--- a/core/pom.xml
+++ b/core/pom.xml
@@ -5,7 +5,7 @@
     <parent>
         <groupId>tel.schich</groupId>
         <artifactId>javacan</artifactId>
-        <version>3.4.0-SNAPSHOT</version>
+        <version>3.4.0</version>
     </parent>
 
     <artifactId>javacan-core</artifactId>
diff --git a/epoll-test/pom.xml b/epoll-test/pom.xml
index a4e1a8ea..e1cf95a3 100644
--- a/epoll-test/pom.xml
+++ b/epoll-test/pom.xml
@@ -5,7 +5,7 @@
     <parent>
         <groupId>tel.schich</groupId>
         <artifactId>javacan</artifactId>
-        <version>3.4.0-SNAPSHOT</version>
+        <version>3.4.0</version>
     </parent>
 
     <artifactId>javacan-epoll-test</artifactId>
diff --git a/epoll/pom.xml b/epoll/pom.xml
index 7f401b92..80d5f59b 100644
--- a/epoll/pom.xml
+++ b/epoll/pom.xml
@@ -5,7 +5,7 @@
     <parent>
         <groupId>tel.schich</groupId>
         <artifactId>javacan</artifactId>
-        <version>3.4.0-SNAPSHOT</version>
+        <version>3.4.0</version>
     </parent>
 
     <artifactId>javacan-epoll</artifactId>
diff --git a/pom.xml b/pom.xml
index 15e7882a..67b283af 100644
--- a/pom.xml
+++ b/pom.xml
@@ -12,7 +12,7 @@
 
     <groupId>tel.schich</groupId>
     <artifactId>javacan</artifactId>
-    <version>3.4.0-SNAPSHOT</version>
+    <version>3.4.0</version>
     <name>JavaCAN</name>
     <url>https://github.com/pschichtel/JavaCAN</url>
     <inceptionYear>2018</inceptionYear>
@@ -28,7 +28,7 @@
         <url>https://github.com/pschichtel/JavaCAN</url>
         <connection>scm:git:https://github.com/pschichtel/JavaCAN</connection>
         <developerConnection>scm:git:git@github.com:pschichtel/JavaCAN</developerConnection>
-        <tag>HEAD</tag>
+        <tag>javacan-3.4.0</tag>
     </scm>
 
     <developers>
@@ -58,7 +58,7 @@
 
     <properties>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
-        <project.build.outputTimestamp>1703813175</project.build.outputTimestamp>
+        <project.build.outputTimestamp>1715385039</project.build.outputTimestamp>
 
         <junit.minor>10.2</junit.minor>
         <junit.version>5.${junit.minor}</junit.version>