diff --git a/build.gradle b/build.gradle
index 04cb64602..11f79e4a0 100644
--- a/build.gradle
+++ b/build.gradle
@@ -38,7 +38,7 @@ ext {
   guavaVersion = '18.0'
   hamcrestVersion = '1.3'
   jcommanderVersion = '1.35'
-  jrubyVersion = '9.1.2.0'
+  jrubyVersion = '9.1.5.0'
   jsoupVersion = '1.8.1'
   junitVersion = '4.12'
   nettyVersion = '4.0.33.Final'