diff --git a/Gemfile.lock b/Gemfile.lock
index 1229f4c4a0..ee385b958b 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -17,7 +17,6 @@ GEM
     faraday (0.9.2)
       multipart-post (>= 1.2, < 3)
     ffi (1.9.14)
-    ffi (1.9.14-x64-mingw32)
     forwardable-extended (2.6.0)
     gemoji (2.1.0)
     html-pipeline (2.4.2)
@@ -75,9 +74,6 @@ GEM
     nokogiri (1.6.8)
       mini_portile2 (~> 2.1.0)
       pkg-config (~> 1.1.7)
-    nokogiri (1.6.8-x64-mingw32)
-      mini_portile2 (~> 2.1.0)
-      pkg-config (~> 1.1.7)
     octokit (4.3.0)
       sawyer (~> 0.7.0, >= 0.5.3)
     pathutil (0.14.0)
@@ -98,7 +94,6 @@ GEM
 
 PLATFORMS
   ruby
-  x64-mingw32
 
 DEPENDENCIES
   activesupport (= 4.2.7)