diff --git a/rails/Gemfile.lock b/rails/Gemfile.lock
index 1dac03c..ce0c60c 100644
--- a/rails/Gemfile.lock
+++ b/rails/Gemfile.lock
@@ -99,7 +99,7 @@ GEM
     mini_portile2 (2.8.0)
     minitest (5.15.0)
     msgpack (1.4.4)
-    mysql2 (0.5.4)
+    mysql2 (0.5.5)
     nio4r (2.5.8)
     nokogiri (1.13.6)
       mini_portile2 (~> 2.8.0)