diff --git a/Gemfile.lock b/Gemfile.lock
index 183f9cd4b..45ccc4f99 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -4,7 +4,7 @@ GEM
     activesupport (3.2.22.5)
       i18n (~> 0.6, >= 0.6.4)
       multi_json (~> 1.0)
-    addressable (2.7.0)
+    addressable (2.8.0)
       public_suffix (>= 2.0.2, < 5.0)
     coffee-script (2.4.1)
       coffee-script-source
@@ -261,7 +261,6 @@ GEM
     unf_ext (0.0.7.7)
     unf_ext (0.0.7.7-x64-mingw32)
     unicode-display_width (1.7.0)
-    wdm (0.1.1)
     webrick (1.7.0)
 
 PLATFORMS
@@ -273,7 +272,6 @@ DEPENDENCIES
   jekyll-feed (~> 0.6)
   just-the-docs (~> 0.3.0)
   tzinfo-data
-  wdm (~> 0.1.0)
   webrick (~> 1.7)
 
 BUNDLED WITH