diff --git a/functional-tests/http/pom.xml b/functional-tests/http/pom.xml
index a48677ab4..d709f5dee 100644
--- a/functional-tests/http/pom.xml
+++ b/functional-tests/http/pom.xml
@@ -28,7 +28,7 @@
         <httpMimeVersion>4.5.14</httpMimeVersion>
         <apacheHttpCoreVersion>4.4.16</apacheHttpCoreVersion>
         <apacheHttpClientVersion>4.5.14</apacheHttpClientVersion>
-        <groovyVersionBuild>4.0.20</groovyVersionBuild>
+        <groovyVersionBuild>4.0.21</groovyVersionBuild>
 
         <formatterConfigPath>../../formatter.xml</formatterConfigPath>
         <httpConnectorVersion>${project.version}</httpConnectorVersion>