diff --git a/.github/workflows/maven.yml b/.github/workflows/maven.yml
index fdbd73af67..4e5a3f5139 100644
--- a/.github/workflows/maven.yml
+++ b/.github/workflows/maven.yml
@@ -91,6 +91,18 @@ jobs:
           mvn clean install \
           -q \
           -Dmaven.test.skip=true
+      - name: Build Cert Manager Contrib
+        run: |
+          cd client-java-contrib/cert-manager
+          mvn clean install \
+          -q \
+          -Dmaven.test.skip=true
+      - name: Build Prometheus Contrib
+        run: |
+          cd client-java-contrib/prometheus-operator
+          mvn clean install \
+          -q \
+          -Dmaven.test.skip=true
       - name: Version 10
         run: |
           cd examples/examples-release-10
diff --git a/examples/examples-release-12/pom.xml b/examples/examples-release-12/pom.xml
index 9c988c1d07..961892a6e1 100644
--- a/examples/examples-release-12/pom.xml
+++ b/examples/examples-release-12/pom.xml
@@ -11,6 +11,11 @@
 	<artifactId>client-java-examples-release-12</artifactId>
 	<name>client-java-examples-release-12</name>
 
+	<properties>
+		<kubernetes.prometheus.version>11.0.1-SNAPSHOT</kubernetes.prometheus.version>
+		<kubernetes.cert-manager.version>11.0.1-SNAPSHOT</kubernetes.cert-manager.version>
+	</properties>
+
 	<dependencies>
         <dependency>
             <groupId>io.prometheus</groupId>
@@ -54,12 +59,12 @@
 		<dependency>
 			<groupId>io.kubernetes</groupId>
 			<artifactId>client-java-cert-manager-models</artifactId>
-			<version>${kubernetes.client.version}</version>
+			<version>${kubernetes.cert-manager.version}</version>
 		</dependency>
 		<dependency>
 			<groupId>io.kubernetes</groupId>
 			<artifactId>client-java-prometheus-operator-models</artifactId>
-			<version>${kubernetes.client.version}</version>
+			<version>${kubernetes.prometheus.version}</version>
 		</dependency>
 		<!-- test dependencies -->
 		<dependency>