diff --git a/de.darmstadt.tu.crossing.CrySL.repository/pom.xml b/de.darmstadt.tu.crossing.CrySL.repository/pom.xml
index 60ddca9b..4ac78f05 100644
--- a/de.darmstadt.tu.crossing.CrySL.repository/pom.xml
+++ b/de.darmstadt.tu.crossing.CrySL.repository/pom.xml
@@ -46,7 +46,7 @@
                 <!-- Skip this plugin because there are no source files to build from -->
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-source-plugin</artifactId>
-                <version>3.3.1</version>
+                <version>3.4.0</version>
                 <executions>
                     <execution>
                         <id>attach-source</id>
diff --git a/pom.xml b/pom.xml
index 120d8491..552f2ecc 100644
--- a/pom.xml
+++ b/pom.xml
@@ -285,7 +285,7 @@
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-source-plugin</artifactId>
-                <version>3.3.1</version>
+                <version>3.4.0</version>
                 <executions>
                     <execution>
                         <id>attach-source</id>