diff --git a/gradle.properties b/gradle.properties
index ee364416cd..97f1ad414e 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -288,6 +288,8 @@ reflectionsVersion=0.10.2
 
 rforgeVersion=0.6-8.1
 
+rhinoVersion=1.9.1
+
 # sync with Tika version
 romeVersion=2.1.0