diff --git a/adapters/mqtt-vertx/pom.xml b/adapters/mqtt-vertx/pom.xml
index 95e46a8cc5..10c8db8aab 100644
--- a/adapters/mqtt-vertx/pom.xml
+++ b/adapters/mqtt-vertx/pom.xml
@@ -3,7 +3,7 @@
   <parent>
     <groupId>org.eclipse.hono</groupId>
     <artifactId>hono-adapters</artifactId>
-    <version>0.5-M4-SNAPSHOT</version>
+    <version>0.5-M4</version>
   </parent>
   <artifactId>hono-adapter-mqtt-vertx</artifactId>
   <name>Hono MQTT Adapter</name>
diff --git a/adapters/pom.xml b/adapters/pom.xml
index 54cc8f2973..b845cf1a69 100644
--- a/adapters/pom.xml
+++ b/adapters/pom.xml
@@ -19,7 +19,7 @@
   <parent>
     <groupId>org.eclipse.hono</groupId>
     <artifactId>hono-bom</artifactId>
-    <version>0.5-M4-SNAPSHOT</version>
+    <version>0.5-M4</version>
     <relativePath>../bom</relativePath>
   </parent>
 
diff --git a/adapters/rest-vertx/pom.xml b/adapters/rest-vertx/pom.xml
index 8e5a3b9bc3..7f8452f3d6 100644
--- a/adapters/rest-vertx/pom.xml
+++ b/adapters/rest-vertx/pom.xml
@@ -4,7 +4,7 @@
   <parent>
     <groupId>org.eclipse.hono</groupId>
     <artifactId>hono-adapters</artifactId>
-    <version>0.5-M4-SNAPSHOT</version>
+    <version>0.5-M4</version>
   </parent>
   <artifactId>hono-adapter-rest-vertx</artifactId>
   <name>Hono REST Adapter</name>
diff --git a/application/pom.xml b/application/pom.xml
index 5eb61601c9..a1de3fd5b5 100644
--- a/application/pom.xml
+++ b/application/pom.xml
@@ -3,7 +3,7 @@
   <parent>
     <groupId>org.eclipse.hono</groupId>
     <artifactId>hono-bom</artifactId>
-    <version>0.5-M4-SNAPSHOT</version>
+    <version>0.5-M4</version>
     <relativePath>../bom</relativePath>
   </parent>
   <artifactId>hono-app</artifactId>
diff --git a/bom/pom.xml b/bom/pom.xml
index 6d6bd1dab1..e5240eeab2 100644
--- a/bom/pom.xml
+++ b/bom/pom.xml
@@ -19,7 +19,7 @@
   <parent>
     <groupId>org.eclipse.hono</groupId>
     <artifactId>hono-parent</artifactId>
-    <version>0.5-M4-SNAPSHOT</version>
+    <version>0.5-M4</version>
   </parent>
 
   <artifactId>hono-bom</artifactId>
diff --git a/client/pom.xml b/client/pom.xml
index 559a0f2c09..2d3ce7b8bb 100644
--- a/client/pom.xml
+++ b/client/pom.xml
@@ -19,7 +19,7 @@
   <parent>
     <groupId>org.eclipse.hono</groupId>
     <artifactId>hono-bom</artifactId>
-    <version>0.5-M4-SNAPSHOT</version>
+    <version>0.5-M4</version>
     <relativePath>../bom</relativePath>
   </parent>
 
diff --git a/core/pom.xml b/core/pom.xml
index b2ea47340f..58a53ec5a0 100644
--- a/core/pom.xml
+++ b/core/pom.xml
@@ -3,7 +3,7 @@
   <parent>
     <groupId>org.eclipse.hono</groupId>
     <artifactId>hono-bom</artifactId>
-    <version>0.5-M4-SNAPSHOT</version>
+    <version>0.5-M4</version>
     <relativePath>../bom</relativePath>
   </parent>
   <artifactId>hono-core</artifactId>
diff --git a/demo-certs/pom.xml b/demo-certs/pom.xml
index 7cf0a195b2..b79e0ada09 100644
--- a/demo-certs/pom.xml
+++ b/demo-certs/pom.xml
@@ -3,7 +3,7 @@
   <parent>
     <groupId>org.eclipse.hono</groupId>
     <artifactId>hono-bom</artifactId>
-    <version>0.5-M4-SNAPSHOT</version>
+    <version>0.5-M4</version>
     <relativePath>../bom</relativePath>
   </parent>
   <artifactId>hono-demo-certs</artifactId>
diff --git a/dispatchrouter/pom.xml b/dispatchrouter/pom.xml
index 80c8fc52fd..1cf81f222d 100644
--- a/dispatchrouter/pom.xml
+++ b/dispatchrouter/pom.xml
@@ -4,7 +4,7 @@
   <parent>
     <groupId>org.eclipse.hono</groupId>
     <artifactId>hono-bom</artifactId>
-    <version>0.5-M4-SNAPSHOT</version>
+    <version>0.5-M4</version>
     <relativePath>../bom</relativePath>
   </parent>
 
diff --git a/example/pom.xml b/example/pom.xml
index da2d6b6880..24b45d38bd 100644
--- a/example/pom.xml
+++ b/example/pom.xml
@@ -19,7 +19,7 @@
   <parent>
     <groupId>org.eclipse.hono</groupId>
     <artifactId>hono-bom</artifactId>
-    <version>0.5-M4-SNAPSHOT</version>
+    <version>0.5-M4</version>
     <relativePath>../bom</relativePath>
   </parent>
 
diff --git a/legal/pom.xml b/legal/pom.xml
index f8543b7fb6..911a36a37f 100644
--- a/legal/pom.xml
+++ b/legal/pom.xml
@@ -3,7 +3,7 @@
   <parent>
     <groupId>org.eclipse.hono</groupId>
     <artifactId>hono-bom</artifactId>
-    <version>0.5-M4-SNAPSHOT</version>
+    <version>0.5-M4</version>
     <relativePath>../bom</relativePath>
   </parent>
   <artifactId>hono-legal</artifactId>
diff --git a/pom.xml b/pom.xml
index 073204085f..fa1d1b5b22 100644
--- a/pom.xml
+++ b/pom.xml
@@ -16,7 +16,7 @@
 
   <groupId>org.eclipse.hono</groupId>
   <artifactId>hono-parent</artifactId>
-  <version>0.5-M4-SNAPSHOT</version>
+  <version>0.5-M4</version>
   <packaging>pom</packaging>
 
   <name>Hono</name>
diff --git a/server/pom.xml b/server/pom.xml
index 325277bafd..898d0f757f 100644
--- a/server/pom.xml
+++ b/server/pom.xml
@@ -5,7 +5,7 @@
   <parent>
     <groupId>org.eclipse.hono</groupId>
     <artifactId>hono-bom</artifactId>
-    <version>0.5-M4-SNAPSHOT</version>
+    <version>0.5-M4</version>
     <relativePath>../bom</relativePath>
   </parent>
   <artifactId>hono-server</artifactId>
diff --git a/tests/pom.xml b/tests/pom.xml
index 942de6dda3..807e7235d7 100644
--- a/tests/pom.xml
+++ b/tests/pom.xml
@@ -8,7 +8,7 @@
   <parent>
     <groupId>org.eclipse.hono</groupId>
     <artifactId>hono-bom</artifactId>
-    <version>0.5-M4-SNAPSHOT</version>
+    <version>0.5-M4</version>
     <relativePath>../bom</relativePath>
   </parent>
   <modelVersion>4.0.0</modelVersion>