diff --git a/Gemfile.lock b/Gemfile.lock
index ec893d0..e58541f 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -75,6 +75,7 @@ GEM
       execjs
     coffee-script-source (1.10.0)
     concurrent-ruby (1.0.2)
+    crass (1.0.5)
     debug_inspector (0.0.2)
     devise (4.2.0)
       bcrypt (~> 3.0)
@@ -118,7 +119,8 @@ GEM
       actionpack (>= 3.0.0)
       activesupport (>= 3.0.0)
     kgio (2.10.0)
-    loofah (2.0.3)
+    loofah (2.3.1)
+      crass (~> 1.0.2)
       nokogiri (>= 1.5.9)
     mail (2.6.4)
       mime-types (>= 1.16, < 4)
@@ -129,12 +131,10 @@ GEM
     minitest (5.9.0)
     multi_json (1.12.1)
     mysql2 (0.4.4)
-    nokogiri (1.6.8)
+    nokogiri (1.6.8.1)
       mini_portile2 (~> 2.1.0)
-      pkg-config (~> 1.1.7)
     orm_adapter (0.5.0)
     phonelib (0.6.11)
-    pkg-config (1.1.7)
     polyamorous (1.3.1)
       activerecord (>= 3.0)
     pundit (1.1.0)