diff --git a/build.gradle b/build.gradle
index b6b7966..fac683d 100644
--- a/build.gradle
+++ b/build.gradle
@@ -169,7 +169,7 @@ subprojects {
     testImplementation ("org.mockito:mockito-inline:$mockitoVersion")
 
     javadoc("com.adaptris:interlok-core-apt:$interlokCoreVersion") { changing= true}
-    umlDoclet("nl.talsmasoftware:umldoclet:2.2.1")
+    umlDoclet("nl.talsmasoftware:umldoclet:2.2.4")
 
     offlineJavadocPackages ("com.adaptris:interlok-core:$interlokCoreVersion:javadoc@jar") { changing= true}
     offlineJavadocPackages ("com.adaptris:interlok-common:$interlokCoreVersion:javadoc@jar") { changing= true}