diff --git a/par-core/pom.xml b/par-core/pom.xml
index dabc39a..f02f5b9 100644
--- a/par-core/pom.xml
+++ b/par-core/pom.xml
@@ -108,5 +108,9 @@
             <groupId>org.apache.groovy</groupId>
             <artifactId>groovy</artifactId>
         </dependency>
+        <dependency>
+            <groupId>org.apache.groovy</groupId>
+            <artifactId>groovy-json</artifactId>
+        </dependency>
     </dependencies>
 </project>
diff --git a/pom.xml b/pom.xml
index 6bf8d24..6479265 100644
--- a/pom.xml
+++ b/pom.xml
@@ -131,6 +131,11 @@
                 <artifactId>groovy</artifactId>
                 <version>4.0.22</version>
             </dependency>
+            <dependency>
+                <groupId>org.apache.groovy</groupId>
+                <artifactId>groovy-json</artifactId>
+                <version>4.0.22</version>
+            </dependency>
         </dependencies>
     </dependencyManagement>