diff --git a/Gemfile.lock b/Gemfile.lock
index 3f73c382..bfd4598e 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -87,7 +87,7 @@ GEM
     minitest (5.21.2)
     msgpack (1.7.2)
     multi_json (1.15.0)
-    mysql2 (0.5.5)
+    mysql2 (0.5.6)
     nenv (0.3.0)
     nokogiri (1.16.0)
       mini_portile2 (~> 2.8.2)