diff --git a/Gemfile.lock b/Gemfile.lock
index fb29223..e546604 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -3,7 +3,7 @@ PATH
   specs:
     qiniu (6.1.0)
       json (~> 1.7)
-      mime-types (~> 2.2)
+      mime-types (~> 1.19)
       rest-client (~> 1.6)
       ruby-hmac (~> 0.4)
 
@@ -13,7 +13,7 @@ GEM
     diff-lcs (1.1.3)
     fakeweb (1.3.0)
     json (1.8.1)
-    mime-types (2.2)
+    mime-types (1.23)
     rake (10.0.3)
     rest-client (1.6.7)
       mime-types (>= 1.16)