diff --git a/pom.xml b/pom.xml
index 0fedd25aab..c72c771c51 100644
--- a/pom.xml
+++ b/pom.xml
@@ -113,7 +113,7 @@
         <!-- Test 3rd-party dependencies: -->
         <easymock.version>5.1.0</easymock.version>
         <gmaven.version>2.1.0</gmaven.version>
-        <groovy.version>2.5.18</groovy.version>
+        <groovy.version>2.5.20</groovy.version>
         <junit.version>4.13.2</junit.version>
         <junit.server.jetty.version>0.11.0</junit.server.jetty.version>
         <hibernate.version>5.6.14.Final</hibernate.version>