diff --git a/ocpp-v1_6-test/pom.xml b/ocpp-v1_6-test/pom.xml
index b6830ca6..a4bb09b9 100644
--- a/ocpp-v1_6-test/pom.xml
+++ b/ocpp-v1_6-test/pom.xml
@@ -99,7 +99,7 @@
             <plugin>
                 <groupId>org.codehaus.gmavenplus</groupId>
                 <artifactId>gmavenplus-plugin</artifactId>
-                <version>3.0.2</version>
+                <version>4.2.1</version>
                 <executions>
                     <execution>
                         <goals>
diff --git a/ocpp-v2-test/pom.xml b/ocpp-v2-test/pom.xml
index 638b50bc..5fb04d9a 100644
--- a/ocpp-v2-test/pom.xml
+++ b/ocpp-v2-test/pom.xml
@@ -125,7 +125,7 @@
             <plugin>
                 <groupId>org.codehaus.gmavenplus</groupId>
                 <artifactId>gmavenplus-plugin</artifactId>
-                <version>3.0.2</version>
+                <version>4.2.1</version>
                 <executions>
                     <execution>
                         <goals>
diff --git a/ocpp-v2_0-test/pom.xml b/ocpp-v2_0-test/pom.xml
index 88b0e799..427edfa1 100644
--- a/ocpp-v2_0-test/pom.xml
+++ b/ocpp-v2_0-test/pom.xml
@@ -100,7 +100,7 @@
             <plugin>
                 <groupId>org.codehaus.gmavenplus</groupId>
                 <artifactId>gmavenplus-plugin</artifactId>
-                <version>3.0.2</version>
+                <version>4.2.1</version>
                 <executions>
                     <execution>
                         <goals>