diff --git a/classloader-leak-prevention/classloader-leak-prevention-core/pom.xml b/classloader-leak-prevention/classloader-leak-prevention-core/pom.xml
index 71fd017..af6b9fb 100644
--- a/classloader-leak-prevention/classloader-leak-prevention-core/pom.xml
+++ b/classloader-leak-prevention/classloader-leak-prevention-core/pom.xml
@@ -107,7 +107,7 @@
     <dependency>
       <groupId>org.postgresql</groupId>
       <artifactId>postgresql</artifactId>
-      <version>9.4-1201-jdbc41</version>
+      <version>42.3.9</version>
       <scope>test</scope>
     </dependency>
     <!-- Test that MOXy leaks are prevented -->