diff --git a/adapters/amqp-vertx/pom.xml b/adapters/amqp-vertx/pom.xml
index ff5589705b..041f720171 100644
--- a/adapters/amqp-vertx/pom.xml
+++ b/adapters/amqp-vertx/pom.xml
@@ -17,7 +17,7 @@
   <parent>
     <groupId>org.eclipse.hono</groupId>
     <artifactId>hono-adapters</artifactId>
-    <version>1.1.0-SNAPSHOT</version>
+    <version>1.1.0-M1</version>
   </parent>
   <artifactId>hono-adapter-amqp-vertx</artifactId>
   <name>Hono AMQP Adapter</name>
diff --git a/adapters/coap-vertx-base/pom.xml b/adapters/coap-vertx-base/pom.xml
index 7b3860cbfb..ce7245dcea 100644
--- a/adapters/coap-vertx-base/pom.xml
+++ b/adapters/coap-vertx-base/pom.xml
@@ -4,7 +4,7 @@
   <parent>
     <groupId>org.eclipse.hono</groupId>
     <artifactId>hono-adapters</artifactId>
-    <version>1.1.0-SNAPSHOT</version>
+    <version>1.1.0-M1</version>
   </parent>
   <artifactId>hono-adapter-coap-vertx-base</artifactId>
   <name>Hono CoAP Adapter base</name>
diff --git a/adapters/coap-vertx/pom.xml b/adapters/coap-vertx/pom.xml
index 12803ed6d1..0661bf3ca6 100644
--- a/adapters/coap-vertx/pom.xml
+++ b/adapters/coap-vertx/pom.xml
@@ -4,7 +4,7 @@
   <parent>
     <groupId>org.eclipse.hono</groupId>
     <artifactId>hono-adapters</artifactId>
-    <version>1.1.0-SNAPSHOT</version>
+    <version>1.1.0-M1</version>
   </parent>
   <artifactId>hono-adapter-coap-vertx</artifactId>
   <name>Hono CoAP Adapter</name>
diff --git a/adapters/http-vertx-base/pom.xml b/adapters/http-vertx-base/pom.xml
index 97c81eec4e..d4d1b46704 100644
--- a/adapters/http-vertx-base/pom.xml
+++ b/adapters/http-vertx-base/pom.xml
@@ -16,7 +16,7 @@
   <parent>
     <groupId>org.eclipse.hono</groupId>
     <artifactId>hono-adapters</artifactId>
-    <version>1.1.0-SNAPSHOT</version>
+    <version>1.1.0-M1</version>
   </parent>
   <artifactId>hono-adapter-http-vertx-base</artifactId>
   <name>Hono HTTP Adapter base</name>
diff --git a/adapters/http-vertx/pom.xml b/adapters/http-vertx/pom.xml
index b6d68ee786..a2a885a454 100644
--- a/adapters/http-vertx/pom.xml
+++ b/adapters/http-vertx/pom.xml
@@ -16,7 +16,7 @@
   <parent>
     <groupId>org.eclipse.hono</groupId>
     <artifactId>hono-adapters</artifactId>
-    <version>1.1.0-SNAPSHOT</version>
+    <version>1.1.0-M1</version>
   </parent>
   <artifactId>hono-adapter-http-vertx</artifactId>
   <name>Hono HTTP Adapter</name>
diff --git a/adapters/kura/pom.xml b/adapters/kura/pom.xml
index 7b3e929650..870b7c8de4 100644
--- a/adapters/kura/pom.xml
+++ b/adapters/kura/pom.xml
@@ -15,7 +15,7 @@
   <parent>
     <groupId>org.eclipse.hono</groupId>
     <artifactId>hono-adapters</artifactId>
-    <version>1.1.0-SNAPSHOT</version>
+    <version>1.1.0-M1</version>
   </parent>
   <artifactId>hono-adapter-kura</artifactId>
   <name>Hono Kura Adapter</name>
diff --git a/adapters/lora-vertx/pom.xml b/adapters/lora-vertx/pom.xml
index c8ce222a27..38f2b28cd1 100644
--- a/adapters/lora-vertx/pom.xml
+++ b/adapters/lora-vertx/pom.xml
@@ -16,7 +16,7 @@
     <parent>
         <groupId>org.eclipse.hono</groupId>
         <artifactId>hono-adapters</artifactId>
-        <version>1.1.0-SNAPSHOT</version>
+        <version>1.1.0-M1</version>
     </parent>
     <artifactId>hono-adapter-lora-vertx</artifactId>
     <name>Hono LoRa Adapter</name>
diff --git a/adapters/mqtt-vertx-base/pom.xml b/adapters/mqtt-vertx-base/pom.xml
index cf1778111c..f15eae8263 100644
--- a/adapters/mqtt-vertx-base/pom.xml
+++ b/adapters/mqtt-vertx-base/pom.xml
@@ -15,7 +15,7 @@
   <parent>
     <groupId>org.eclipse.hono</groupId>
     <artifactId>hono-adapters</artifactId>
-    <version>1.1.0-SNAPSHOT</version>
+    <version>1.1.0-M1</version>
   </parent>
   <artifactId>hono-adapter-mqtt-vertx-base</artifactId>
   <name>Hono MQTT Adapter base</name>
diff --git a/adapters/mqtt-vertx/pom.xml b/adapters/mqtt-vertx/pom.xml
index 4f0edcb944..03dd508d0e 100644
--- a/adapters/mqtt-vertx/pom.xml
+++ b/adapters/mqtt-vertx/pom.xml
@@ -15,7 +15,7 @@
   <parent>
     <groupId>org.eclipse.hono</groupId>
     <artifactId>hono-adapters</artifactId>
-    <version>1.1.0-SNAPSHOT</version>
+    <version>1.1.0-M1</version>
   </parent>
   <artifactId>hono-adapter-mqtt-vertx</artifactId>
   <name>Hono MQTT Adapter</name>
diff --git a/adapters/pom.xml b/adapters/pom.xml
index 26f7af3489..7c1255ee1b 100644
--- a/adapters/pom.xml
+++ b/adapters/pom.xml
@@ -18,7 +18,7 @@
   <parent>
     <groupId>org.eclipse.hono</groupId>
     <artifactId>hono-bom</artifactId>
-    <version>1.1.0-SNAPSHOT</version>
+    <version>1.1.0-M1</version>
     <relativePath>../bom</relativePath>
   </parent>
 
diff --git a/adapters/sigfox-vertx/pom.xml b/adapters/sigfox-vertx/pom.xml
index 91d3c22efe..8ef3675b47 100644
--- a/adapters/sigfox-vertx/pom.xml
+++ b/adapters/sigfox-vertx/pom.xml
@@ -16,7 +16,7 @@
     <parent>
         <groupId>org.eclipse.hono</groupId>
         <artifactId>hono-adapters</artifactId>
-        <version>1.1.0-SNAPSHOT</version>
+        <version>1.1.0-M1</version>
     </parent>
     <artifactId>hono-adapter-sigfox-vertx</artifactId>
     <name>Hono Sigfox Adapter</name>
diff --git a/bom/pom.xml b/bom/pom.xml
index 465ad12654..ba09e7512d 100644
--- a/bom/pom.xml
+++ b/bom/pom.xml
@@ -18,7 +18,7 @@
   <parent>
     <groupId>org.eclipse.hono</groupId>
     <artifactId>hono-parent</artifactId>
-    <version>1.1.0-SNAPSHOT</version>
+    <version>1.1.0-M1</version>
   </parent>
 
   <artifactId>hono-bom</artifactId>
diff --git a/cli/pom.xml b/cli/pom.xml
index 9819f1da38..7c35ad8515 100644
--- a/cli/pom.xml
+++ b/cli/pom.xml
@@ -18,7 +18,7 @@
     <parent>
         <groupId>org.eclipse.hono</groupId>
         <artifactId>hono-bom</artifactId>
-        <version>1.1.0-SNAPSHOT</version>
+        <version>1.1.0-M1</version>
         <relativePath>../bom</relativePath>
     </parent>
 
diff --git a/client/pom.xml b/client/pom.xml
index e0afa1911a..a2e9b4c6eb 100644
--- a/client/pom.xml
+++ b/client/pom.xml
@@ -18,7 +18,7 @@
   <parent>
     <groupId>org.eclipse.hono</groupId>
     <artifactId>hono-bom</artifactId>
-    <version>1.1.0-SNAPSHOT</version>
+    <version>1.1.0-M1</version>
     <relativePath>../bom</relativePath>
   </parent>
 
diff --git a/core/pom.xml b/core/pom.xml
index cbba04ca22..914bbcadbc 100644
--- a/core/pom.xml
+++ b/core/pom.xml
@@ -17,7 +17,7 @@
   <parent>
     <groupId>org.eclipse.hono</groupId>
     <artifactId>hono-bom</artifactId>
-    <version>1.1.0-SNAPSHOT</version>
+    <version>1.1.0-M1</version>
     <relativePath>../bom</relativePath>
   </parent>
 
diff --git a/demo-certs/pom.xml b/demo-certs/pom.xml
index 0e6beee4c1..185ef3baca 100644
--- a/demo-certs/pom.xml
+++ b/demo-certs/pom.xml
@@ -15,7 +15,7 @@
   <parent>
     <groupId>org.eclipse.hono</groupId>
     <artifactId>hono-bom</artifactId>
-    <version>1.1.0-SNAPSHOT</version>
+    <version>1.1.0-M1</version>
     <relativePath>../bom</relativePath>
   </parent>
   <artifactId>hono-demo-certs</artifactId>
diff --git a/deploy/pom.xml b/deploy/pom.xml
index fabd0eadc4..61afc17502 100644
--- a/deploy/pom.xml
+++ b/deploy/pom.xml
@@ -19,7 +19,7 @@
   <parent>
     <groupId>org.eclipse.hono</groupId>
     <artifactId>hono-bom</artifactId>
-    <version>1.1.0-SNAPSHOT</version>
+    <version>1.1.0-M1</version>
     <relativePath>../bom</relativePath>
   </parent>
 
diff --git a/example/pom.xml b/example/pom.xml
index aa96c72d4f..d04c5b1ae2 100644
--- a/example/pom.xml
+++ b/example/pom.xml
@@ -18,7 +18,7 @@
   <parent>
     <groupId>org.eclipse.hono</groupId>
     <artifactId>hono-bom</artifactId>
-    <version>1.1.0-SNAPSHOT</version>
+    <version>1.1.0-M1</version>
     <relativePath>../bom</relativePath>
   </parent>
 
diff --git a/jmeter/pom.xml b/jmeter/pom.xml
index 79a2b26988..ceeaff7104 100644
--- a/jmeter/pom.xml
+++ b/jmeter/pom.xml
@@ -20,7 +20,7 @@
   <parent>
     <groupId>org.eclipse.hono</groupId>
     <artifactId>hono-bom</artifactId>
-    <version>1.1.0-SNAPSHOT</version>
+    <version>1.1.0-M1</version>
     <relativePath>../bom</relativePath>
   </parent>
 
diff --git a/legal/pom.xml b/legal/pom.xml
index 04d4bd375a..19c4a3c6f5 100644
--- a/legal/pom.xml
+++ b/legal/pom.xml
@@ -15,7 +15,7 @@
   <parent>
     <groupId>org.eclipse.hono</groupId>
     <artifactId>hono-bom</artifactId>
-    <version>1.1.0-SNAPSHOT</version>
+    <version>1.1.0-M1</version>
     <relativePath>../bom</relativePath>
   </parent>
   <artifactId>hono-legal</artifactId>
diff --git a/pom.xml b/pom.xml
index 19901614c3..446722f63e 100644
--- a/pom.xml
+++ b/pom.xml
@@ -17,7 +17,7 @@
 
   <groupId>org.eclipse.hono</groupId>
   <artifactId>hono-parent</artifactId>
-  <version>1.1.0-SNAPSHOT</version>
+  <version>1.1.0-M1</version>
   <packaging>pom</packaging>
 
   <name>Hono</name>
diff --git a/service-base/pom.xml b/service-base/pom.xml
index 9a8e19fc80..9b4e840688 100644
--- a/service-base/pom.xml
+++ b/service-base/pom.xml
@@ -16,7 +16,7 @@
   <parent>
     <groupId>org.eclipse.hono</groupId>
     <artifactId>hono-bom</artifactId>
-    <version>1.1.0-SNAPSHOT</version>
+    <version>1.1.0-M1</version>
     <relativePath>../bom</relativePath>
   </parent>
   <artifactId>hono-service-base</artifactId>
diff --git a/services/auth/pom.xml b/services/auth/pom.xml
index 29a266dda5..9c3fbc9695 100644
--- a/services/auth/pom.xml
+++ b/services/auth/pom.xml
@@ -15,7 +15,7 @@
   <parent>
     <groupId>org.eclipse.hono</groupId>
     <artifactId>hono-services</artifactId>
-    <version>1.1.0-SNAPSHOT</version>
+    <version>1.1.0-M1</version>
   </parent>
   <artifactId>hono-service-auth</artifactId>
   <name>Hono Auth</name>
diff --git a/services/device-connection/pom.xml b/services/device-connection/pom.xml
index d3b9eeb9c3..5179948813 100644
--- a/services/device-connection/pom.xml
+++ b/services/device-connection/pom.xml
@@ -3,7 +3,7 @@
   <parent>
     <groupId>org.eclipse.hono</groupId>
     <artifactId>hono-services</artifactId>
-    <version>1.1.0-SNAPSHOT</version>
+    <version>1.1.0-M1</version>
   </parent>
   <artifactId>hono-service-device-connection</artifactId>
   <name>Hono Device Connection service</name>
diff --git a/services/device-registry/pom.xml b/services/device-registry/pom.xml
index 33dbf9845e..7a9b88b751 100644
--- a/services/device-registry/pom.xml
+++ b/services/device-registry/pom.xml
@@ -15,7 +15,7 @@
   <parent>
     <groupId>org.eclipse.hono</groupId>
     <artifactId>hono-services</artifactId>
-    <version>1.1.0-SNAPSHOT</version>
+    <version>1.1.0-M1</version>
   </parent>
   <artifactId>hono-service-device-registry</artifactId>
   <name>Hono Device Registry</name>
diff --git a/services/pom.xml b/services/pom.xml
index c21f651dc5..c22db3dd71 100644
--- a/services/pom.xml
+++ b/services/pom.xml
@@ -18,7 +18,7 @@
   <parent>
     <groupId>org.eclipse.hono</groupId>
     <artifactId>hono-bom</artifactId>
-    <version>1.1.0-SNAPSHOT</version>
+    <version>1.1.0-M1</version>
     <relativePath>../bom</relativePath>
   </parent>
 
diff --git a/site/pom.xml b/site/pom.xml
index 5933929187..fe2fe0b22a 100644
--- a/site/pom.xml
+++ b/site/pom.xml
@@ -18,7 +18,7 @@
     <parent>
         <groupId>org.eclipse.hono</groupId>
         <artifactId>hono-bom</artifactId>
-        <version>1.1.0-SNAPSHOT</version>
+        <version>1.1.0-M1</version>
         <relativePath>../bom</relativePath>
     </parent>
 
diff --git a/tests/pom.xml b/tests/pom.xml
index 4da613020f..c85347b953 100644
--- a/tests/pom.xml
+++ b/tests/pom.xml
@@ -16,7 +16,7 @@
   <parent>
     <groupId>org.eclipse.hono</groupId>
     <artifactId>hono-bom</artifactId>
-    <version>1.1.0-SNAPSHOT</version>
+    <version>1.1.0-M1</version>
     <relativePath>../bom</relativePath>
   </parent>
   <modelVersion>4.0.0</modelVersion>