diff --git a/base/pom.xml b/base/pom.xml
index 651ce20e..c1f1144b 100644
--- a/base/pom.xml
+++ b/base/pom.xml
@@ -198,7 +198,7 @@
 			<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-sources</id>
diff --git a/db-jdbc-spring-orm-hibernate/pom.xml b/db-jdbc-spring-orm-hibernate/pom.xml
index 7f01a9db..4e8711c4 100644
--- a/db-jdbc-spring-orm-hibernate/pom.xml
+++ b/db-jdbc-spring-orm-hibernate/pom.xml
@@ -145,7 +145,7 @@
 			<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-sources</id>
diff --git a/db-jdbc-spring-orm/pom.xml b/db-jdbc-spring-orm/pom.xml
index fe382fa4..e2b89909 100644
--- a/db-jdbc-spring-orm/pom.xml
+++ b/db-jdbc-spring-orm/pom.xml
@@ -145,7 +145,7 @@
 			<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-sources</id>
diff --git a/db-jdbc/pom.xml b/db-jdbc/pom.xml
index 135c6158..f299a18b 100644
--- a/db-jdbc/pom.xml
+++ b/db-jdbc/pom.xml
@@ -160,7 +160,7 @@
 			<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-sources</id>
diff --git a/jul-to-slf4j/pom.xml b/jul-to-slf4j/pom.xml
index 0ac98914..4fa18b56 100644
--- a/jul-to-slf4j/pom.xml
+++ b/jul-to-slf4j/pom.xml
@@ -134,7 +134,7 @@
 			<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-sources</id>
diff --git a/mockserver/pom.xml b/mockserver/pom.xml
index cd056d44..7def0e61 100644
--- a/mockserver/pom.xml
+++ b/mockserver/pom.xml
@@ -156,7 +156,7 @@
 			<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-sources</id>
diff --git a/oidc-server-mock/pom.xml b/oidc-server-mock/pom.xml
index 0c95d5ff..bb7faed2 100644
--- a/oidc-server-mock/pom.xml
+++ b/oidc-server-mock/pom.xml
@@ -140,7 +140,7 @@
 			<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-sources</id>
diff --git a/selenium/pom.xml b/selenium/pom.xml
index 5c9c149f..34b898b0 100644
--- a/selenium/pom.xml
+++ b/selenium/pom.xml
@@ -189,7 +189,7 @@
 			<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-sources</id>
diff --git a/spring-dao-support/pom.xml b/spring-dao-support/pom.xml
index 7e392264..1b2682a9 100644
--- a/spring-dao-support/pom.xml
+++ b/spring-dao-support/pom.xml
@@ -166,7 +166,7 @@
 			<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-sources</id>