diff --git a/build.gradle b/build.gradle
index 9dd979c9644c..805ed49ca738 100644
--- a/build.gradle
+++ b/build.gradle
@@ -561,7 +561,7 @@ configurations {
 }
 
 dependencies {
-    requireJavadoc "org.plumelib:require-javadoc:1.0.2"
+    requireJavadoc "org.plumelib:require-javadoc:1.0.6"
 }
 
 task requireJavadoc(type: JavaExec, group: 'Documentation') {