diff --git a/Gemfile.lock b/Gemfile.lock
index 5732f19..0e31100 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -116,6 +116,7 @@ GEM
     coffee-script-source (1.10.0)
     concurrent-ruby (1.0.2)
     connection_pool (2.2.0)
+    crass (1.0.5)
     database_cleaner (1.5.3)
     debug_inspector (0.0.2)
     devise (3.5.10)
@@ -196,7 +197,8 @@ GEM
       rb-fsevent (~> 0.9, >= 0.9.4)
       rb-inotify (~> 0.9, >= 0.9.7)
       ruby_dep (~> 1.2)
-    loofah (2.0.3)
+    loofah (2.3.1)
+      crass (~> 1.0.2)
       nokogiri (>= 1.5.9)
     lumberjack (1.0.10)
     mail (2.6.4)
@@ -213,9 +215,8 @@ GEM
     multi_json (1.12.1)
     mysql2 (0.4.4)
     nenv (0.3.0)
-    nokogiri (1.6.8)
+    nokogiri (1.6.8.1)
       mini_portile2 (~> 2.1.0)
-      pkg-config (~> 1.1.7)
     notiffany (0.1.1)
       nenv (~> 0.1)
       shellany (~> 0.0)
@@ -235,7 +236,6 @@ GEM
     parallel (1.9.0)
     parallel_tests (2.7.1)
       parallel
-    pkg-config (1.1.7)
     polyamorous (1.3.1)
       activerecord (>= 3.0)
     pry (0.10.4)