diff --git a/Gemfile b/Gemfile
index 224771f..ee600a6 100644
--- a/Gemfile
+++ b/Gemfile
@@ -28,7 +28,7 @@ gem 'sdoc', '~> 0.4.0', group: :doc
 
 # TOJWebapp のために追加したよ
 gem 'devise'
-gem 'redcarpet', '~> 2.3.0'
+gem 'redcarpet', '~> 3.5.1'
 gem 'coderay'
 gem 'gretel'
 
diff --git a/Gemfile.lock b/Gemfile.lock
index 7796399..155cfaa 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -30,6 +30,10 @@ GEM
       activemodel (= 4.2.8)
       activesupport (= 4.2.8)
       arel (~> 6.0)
+    activerecord-mysql-awesome (0.0.9)
+      activerecord (~> 4.0)
+      activesupport (~> 4.0)
+      mysql2 (>= 0.3.18)
     activesupport (4.2.8)
       i18n (~> 0.7)
       minitest (~> 5.1)
@@ -122,7 +126,7 @@ GEM
       thor (>= 0.18.1, < 2.0)
     rake (12.0.0)
     rdoc (4.3.0)
-    redcarpet (2.3.0)
+    redcarpet (3.5.1)
     responders (2.1.1)
       railties (>= 4.2.0, < 5.1)
     ridgepole (0.6.6)
@@ -178,6 +182,7 @@ PLATFORMS
   ruby
 
 DEPENDENCIES
+  activerecord-mysql-awesome
   byebug
   coderay
   coffee-rails (~> 4.1.0)
@@ -188,7 +193,7 @@ DEPENDENCIES
   jquery-turbolinks
   mysql2 (< 0.5)
   rails (= 4.2.8)
-  redcarpet (~> 2.3.0)
+  redcarpet (~> 3.5.1)
   ridgepole
   sass-rails (~> 5.0)
   sdoc (~> 0.4.0)