diff --git a/Gemfile.lock b/Gemfile.lock
index f138766..fae20e0 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -64,7 +64,7 @@ GEM
     google-cloud-env (1.6.0)
       faraday (>= 0.17.3, < 3.0)
     method_source (1.0.0)
-    mock_redis (0.30.0)
+    mock_redis (0.31.0)
       ruby2_keywords
     multipart-post (2.1.1)
     mustermann (1.1.1)