diff --git a/Gemfile.lock b/Gemfile.lock
index 7ae30b0aa..3b295964a 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -28,7 +28,7 @@ GEM
     moneta (1.0.0)
     multi_json (1.15.0)
     parallel (1.26.3)
-    parallel_tests (4.7.2)
+    parallel_tests (4.9.0)
       parallel
     platform-api (3.7.0)
       heroics (~> 0.1.1)