diff --git a/pom.xml b/pom.xml
index f84a081..b5f959f 100644
--- a/pom.xml
+++ b/pom.xml
@@ -41,7 +41,7 @@
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
         <java.version>1.8</java.version>
         <javadoc.plugin.version>3.12.0</javadoc.plugin.version>
-        <source.plugin.version>3.3.1</source.plugin.version>
+        <source.plugin.version>3.4.0</source.plugin.version>
         <maven.compiler.version>3.16.0</maven.compiler.version>
         <gpg.plugin.version>3.2.5</gpg.plugin.version>
         <version.nexus-staging.plugin>1.6.8</version.nexus-staging.plugin>