diff --git a/jenkins-plugin/pom.xml b/jenkins-plugin/pom.xml
index 5ece4b0..b468824 100644
--- a/jenkins-plugin/pom.xml
+++ b/jenkins-plugin/pom.xml
@@ -108,7 +108,7 @@
         <dependency>
             <groupId>io.jenkins.configuration-as-code</groupId>
             <artifactId>test-harness</artifactId>
-            <version>1.55</version>
+            <version>1805.v1455f39c04cf</version>
             <scope>test</scope>
         </dependency>
     </dependencies>