diff --git a/Gemfile.lock b/Gemfile.lock
index 23731cd..e0cc0c1 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -57,6 +57,7 @@ GEM
     childprocess (0.5.5)
       ffi (~> 1.0, >= 1.0.11)
     coderay (1.1.0)
+    crass (1.0.6)
     diff-lcs (1.2.5)
     erubis (2.7.0)
     ffi (1.9.6)
@@ -89,18 +90,19 @@ GEM
       celluloid (>= 0.15.2)
       rb-fsevent (>= 0.9.3)
       rb-inotify (>= 0.9)
-    loofah (2.0.1)
+    loofah (2.18.0)
+      crass (~> 1.0.2)
       nokogiri (>= 1.5.9)
     lumberjack (1.0.9)
     mail (2.6.3)
       mime-types (>= 1.16, < 3)
     method_source (0.8.2)
     mime-types (2.4.3)
-    mini_portile (0.6.1)
+    mini_portile2 (2.1.0)
     minitest (5.5.1)
     multi_json (1.10.1)
-    nokogiri (1.6.5)
-      mini_portile (~> 0.6.0)
+    nokogiri (1.6.8.1)
+      mini_portile2 (~> 2.1.0)
     pry (0.10.1)
       coderay (~> 1.1.0)
       method_source (~> 0.8.1)
@@ -125,8 +127,8 @@ GEM
       activesupport (>= 4.2.0.beta, < 5.0)
       nokogiri (~> 1.6.0)
       rails-deprecated_sanitizer (>= 1.0.1)
-    rails-html-sanitizer (1.0.1)
-      loofah (~> 2.0)
+    rails-html-sanitizer (1.4.3)
+      loofah (~> 2.3)
     railties (4.2.0)
       actionpack (= 4.2.0)
       activesupport (= 4.2.0)