diff --git a/Gemfile b/Gemfile
index a45ce65..5ede63b 100644
--- a/Gemfile
+++ b/Gemfile
@@ -69,5 +69,5 @@ group :development do
 end
 
 group :production do
-  gem 'mysql2', '~> 0.3' # Database
+  gem 'mysql2', '~> 0.3.0' # Database
 end
diff --git a/Gemfile.lock b/Gemfile.lock
index 83c99c7..7304f1a 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -112,7 +112,7 @@ GEM
     multi_json (1.11.2)
     multi_xml (0.5.5)
     multipart-post (2.0.0)
-    mysql2 (0.4.0)
+    mysql2 (0.3.20)
     net-scp (1.2.1)
       net-ssh (>= 2.6.5)
     net-ssh (2.9.2)
@@ -238,7 +238,7 @@ DEPENDENCIES
   faker
   jbuilder (~> 2.0)
   jquery-rails
-  mysql2 (~> 0.3)
+  mysql2 (~> 0.3.0)
   omniauth-oauth2
   purecss-rails
   rails (= 4.2.4)