diff --git a/pom.xml b/pom.xml
index bf9f6e4..b3ccd64 100644
--- a/pom.xml
+++ b/pom.xml
@@ -43,7 +43,7 @@
         <version.maven-compiler-plugin>3.6.2</version.maven-compiler-plugin>
         <version.maven-deploy-plugin>3.1.3</version.maven-deploy-plugin>
         <version.maven-release-plugin>2.5.3</version.maven-release-plugin>
-        <version.maven-source-plugin>3.3.1</version.maven-source-plugin>
+        <version.maven-source-plugin>3.4.0</version.maven-source-plugin>
         <version.maven-surefire-plugin>2.20</version.maven-surefire-plugin>
         <version.maven-javadoc-plugin>3.10.0</version.maven-javadoc-plugin>
         <version.io.takari-maven>0.7.7</version.io.takari-maven>