diff --git a/OCPP-J/pom.xml b/OCPP-J/pom.xml
index 75af72b7..786566fd 100644
--- a/OCPP-J/pom.xml
+++ b/OCPP-J/pom.xml
@@ -103,7 +103,7 @@
           <plugin>
               <groupId>org.apache.maven.plugins</groupId>
               <artifactId>maven-source-plugin</artifactId>
-              <version>3.3.0</version>
+              <version>3.4.0</version>
               <executions>
                   <execution>
                       <id>attach-sources</id>
diff --git a/ocpp-common/pom.xml b/ocpp-common/pom.xml
index e0854aa6..88b68116 100644
--- a/ocpp-common/pom.xml
+++ b/ocpp-common/pom.xml
@@ -104,7 +104,7 @@
             <plugin>
               <groupId>org.apache.maven.plugins</groupId>
               <artifactId>maven-source-plugin</artifactId>
-              <version>3.3.0</version>
+              <version>3.4.0</version>
               <executions>
                 <execution>
                   <id>attach-sources</id>
diff --git a/ocpp-v1_6/pom.xml b/ocpp-v1_6/pom.xml
index 1e61a9d0..1413dc5e 100644
--- a/ocpp-v1_6/pom.xml
+++ b/ocpp-v1_6/pom.xml
@@ -102,7 +102,7 @@
             <plugin>
               <groupId>org.apache.maven.plugins</groupId>
               <artifactId>maven-source-plugin</artifactId>
-              <version>3.3.0</version>
+              <version>3.4.0</version>
               <executions>
                 <execution>
                   <id>attach-sources</id>
diff --git a/ocpp-v2/pom.xml b/ocpp-v2/pom.xml
index 32b4ae1e..d8287e7b 100644
--- a/ocpp-v2/pom.xml
+++ b/ocpp-v2/pom.xml
@@ -112,7 +112,7 @@
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-source-plugin</artifactId>
-                <version>3.3.0</version>
+                <version>3.4.0</version>
                 <executions>
                     <execution>
                         <id>attach-sources</id>
diff --git a/ocpp-v2_0/pom.xml b/ocpp-v2_0/pom.xml
index aaebe770..3e6d1e95 100644
--- a/ocpp-v2_0/pom.xml
+++ b/ocpp-v2_0/pom.xml
@@ -96,7 +96,7 @@
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-source-plugin</artifactId>
-                <version>3.3.0</version>
+                <version>3.4.0</version>
                 <executions>
                     <execution>
                         <id>attach-sources</id>