diff --git a/pmd/pmd_modified/pmd_modified/pmd-dist/pom.xml b/pmd/pmd_modified/pmd_modified/pmd-dist/pom.xml
index 484f6435..486276f6 100644
--- a/pmd/pmd_modified/pmd_modified/pmd-dist/pom.xml
+++ b/pmd/pmd_modified/pmd_modified/pmd-dist/pom.xml
@@ -222,7 +222,7 @@
         <dependency>
             <groupId>org.apache.commons</groupId>
             <artifactId>commons-compress</artifactId>
-            <version>1.18</version>
+            <version>1.21</version>
             <scope>test</scope>
         </dependency>
     </dependencies>