diff --git a/Gemfile.lock b/Gemfile.lock
index 7f7dabe..31b294e 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -174,7 +174,7 @@ GEM
     mini_portile2 (2.3.0)
     minitest (5.11.3)
     multi_json (1.13.1)
-    mysql2 (0.5.0)
+    mysql2 (0.4.10)
     net-scp (1.2.1)
       net-ssh (>= 2.6.5)
     net-ssh (4.2.0)