diff --git a/README.adoc b/README.adoc
index 4dc9a1d..1a6954f 100644
--- a/README.adoc
+++ b/README.adoc
@@ -25,7 +25,7 @@ every Pub/Sub attribute as MQTT user properties.
 
 . Clone this repository into a Java 11 Gradle project.
 . Run the `./gradlew jar` task from Gradle to build the customization.
-. Move the `build/libs/hivemq-google-cloud-pubsub-hello-world-customization-4.19.0.jar` file to the  `HIVEMQ_HOME/extensions/hivemq-google-cloud-pubsub-extension/customizations` directory.
+. Move the `build/libs/hivemq-google-cloud-pubsub-hello-world-customization-4.20.0.jar` file to the  `HIVEMQ_HOME/extensions/hivemq-google-cloud-pubsub-extension/customizations` directory.
 . Copy the `src/main/resources/google-cloud-pubsub-configuration.xml` file to the `HIVEMQ_HOME/extensions/hivemq-google-cloud-pubsub-extension` folder.
 . Adapt the configuration to your environment.
     - Set the `<google-cloud-project-id>` in the `<pubsub-connection>` tag to match your Google Cloud Pub/Sub project ID.
diff --git a/gradle.properties b/gradle.properties
index 84323c6..3fb10e6 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -1,8 +1,8 @@
-version=4.19.0
+version=4.20.0
 #
 # main dependencies
 #
-hivemq-google-cloud-pubsub-sdk.version=4.19.0
+hivemq-google-cloud-pubsub-sdk.version=4.20.0
 #
 # test dependencies
 #