diff --git a/Gemfile b/Gemfile
index 0edbd5ca..e2e09adb 100644
--- a/Gemfile
+++ b/Gemfile
@@ -1,5 +1,6 @@
 source :rubygems
 
+gem "mizuho"
 gem "nokogiri"
 gem "redcarpet"
 gem "sqlite3"
diff --git a/Gemfile.lock b/Gemfile.lock
index 3fbe02de..5a79a8b9 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -8,6 +8,9 @@ GIT
 GEM
   remote: http://rubygems.org/
   specs:
+    mizuho (0.9.13)
+      nokogiri
+      sqlite3
     nokogiri (1.5.5)
     redcarpet (2.2.2)
     sqlite3 (1.3.6)
@@ -16,6 +19,7 @@ PLATFORMS
   ruby
 
 DEPENDENCIES
+  mizuho
   nokogiri
   redcarpet
   sqlite3