diff --git a/code/pom.xml b/code/pom.xml
index 95c206e..9660e67 100644
--- a/code/pom.xml
+++ b/code/pom.xml
@@ -81,7 +81,7 @@
     <maven-javadoc-plugin.version>3.10.0</maven-javadoc-plugin.version>
     <maven-release-plugin.version>3.3.1</maven-release-plugin.version>
     <maven-release-semver-policy.version>3.3.1</maven-release-semver-policy.version>
-    <maven-source-plugin.version>3.3.1</maven-source-plugin.version>
+    <maven-source-plugin.version>3.4.0</maven-source-plugin.version>
     <maven-surefire-plugin.version>3.5.5</maven-surefire-plugin.version>
     <central-publishing-maven-plugin.version>0.5.0</central-publishing-maven-plugin.version>
     <license-maven-plugin.version>2.7.1</license-maven-plugin.version>