diff --git a/Gemfile.lock b/Gemfile.lock
index 9e4bcc66..51e83b8a 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -19,6 +19,8 @@ GEM
     ffi (1.9.0)
     ffi (1.9.0-java)
     ffi (1.9.0-x86-mingw32)
+    ffi-win32-extensions (1.0.4)
+      ffi
     gherkin (2.12.2)
       multi_json (~> 1.3)
     gherkin (2.12.2-java)
@@ -52,8 +54,8 @@ GEM
       rdoc
     jruby-openssl (0.9.4)
       bouncy-castle-java (>= 1.5.0147)
-    json (1.8.1)
-    json (1.8.1-java)
+    json (1.8.6)
+    json (1.8.6-java)
     jwt (0.1.8)
       multi_json (>= 1.5)
     multi_json (1.8.2)
@@ -79,8 +81,7 @@ GEM
     rack-test (0.6.2)
       rack (>= 1.0)
     rake (10.1.0)
-    rdoc (4.0.1)
-      json (~> 1.4)
+    rdoc (6.3.2)
     rspec (2.14.1)
       rspec-core (~> 2.14.0)
       rspec-expectations (~> 2.14.0)
@@ -106,18 +107,13 @@ GEM
       tilt (~> 1.3)
     thor (0.18.1)
     tilt (1.4.1)
-    win32-api (1.5.0-x86-mingw32)
-    win32-file (0.6.8)
-      win32-api (>= 1.2.1)
-      win32-file-stat (>= 1.3.2)
-      windows-pr (>= 1.0.8)
-    win32-file-stat (1.3.6)
-      windows-pr (>= 1.0.0)
-    windows-api (0.4.2)
-      win32-api (>= 1.4.5)
-    windows-pr (1.2.2)
-      win32-api (>= 1.4.5)
-      windows-api (>= 0.3.0)
+    win32-file (0.8.2)
+      ffi
+      ffi-win32-extensions
+      win32-file-stat (>= 1.4.0)
+    win32-file-stat (1.5.5)
+      ffi
+      ffi-win32-extensions
 
 PLATFORMS
   java