diff --git a/.github/workflows/verify.yml b/.github/workflows/verify.yml
index a412bb3d0..a00ef48b0 100644
--- a/.github/workflows/verify.yml
+++ b/.github/workflows/verify.yml
@@ -34,7 +34,7 @@ jobs:
       - name: Set up Maven
         uses: stCarolas/setup-maven@v5
         with:
-          maven-version: 3.9.12
+          maven-version: 3.9.13
       - uses: actions/checkout@v6
       - name: Set up JDK 21
         uses: actions/setup-java@v5
diff --git a/ddk-parent/pom.xml b/ddk-parent/pom.xml
index 8a5880ce5..3927e3629 100644
--- a/ddk-parent/pom.xml
+++ b/ddk-parent/pom.xml
@@ -43,7 +43,7 @@
     <test.testClass>com.avaloq.tools.ddk.xtext.AllTests</test.testClass>
 
     <!-- maven enforced version -->
-    <maven-enforcer-rule.version>3.9.12</maven-enforcer-rule.version>
+    <maven-enforcer-rule.version>[3.9.0,4)</maven-enforcer-rule.version>
 
     <!-- maven plugin versions -->
     <checkstyle.plugin.version>3.6.0</checkstyle.plugin.version>