diff --git a/pom.xml b/pom.xml
index 295931e..c06e727 100644
--- a/pom.xml
+++ b/pom.xml
@@ -77,7 +77,7 @@
     <version.maven-release-plugin>2.5.3</version.maven-release-plugin>
     <version.maven-source-plugin>3.0.1</version.maven-source-plugin>
     <version.maven-surefire-plugin>2.20</version.maven-surefire-plugin>
-    <version.maven-javadoc-plugin>3.0.0</version.maven-javadoc-plugin>
+    <version.maven-javadoc-plugin>3.3.1</version.maven-javadoc-plugin>
     <version.maven-checkstyle-plugin>2.17</version.maven-checkstyle-plugin>
     <version.checkstyle>8.36</version.checkstyle>
     <version.io.takari-maven>0.3.4</version.io.takari-maven>