diff --git a/pom.xml b/pom.xml
index 2e7a582..a4be343 100644
--- a/pom.xml
+++ b/pom.xml
@@ -20,7 +20,7 @@
 
     <properties>
         <jackson.version>2.11.1</jackson.version>
-        <groovy.version>2.4.15</groovy.version>
+        <groovy.version>2.4.21</groovy.version>
         <spock.version>1.2-groovy-2.4</spock.version>
         <spock.spring.version>1.2-groovy-2.4</spock.spring.version>
     </properties>