diff --git a/README.adoc b/README.adoc
index 77009d9..d752198 100644
--- a/README.adoc
+++ b/README.adoc
@@ -39,7 +39,7 @@ To use the SDK, add the following dependency to your Maven project:
 <dependency>
     <groupId>com.hivemq</groupId>
     <artifactId>hivemq-extension-sdk</artifactId>
-    <version>4.27.0</version>
+    <version>4.28.0</version>
 </dependency>
 ----
 
diff --git a/gradle.properties b/gradle.properties
index ab3b432..f314626 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -1 +1 @@
-version=4.28.0-SNAPSHOT
+version=4.28.0