diff --git a/Gemfile.lock b/Gemfile.lock
index afa9311..545f57e 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -88,7 +88,7 @@ GEM
     connection_pool (2.2.1)
     crack (0.4.3)
       safe_yaml (~> 1.0.0)
-    crass (1.0.3)
+    crass (1.0.6)
     database_cleaner (1.5.3)
     debug_inspector (0.0.2)
     discourse_api (0.35.0)
@@ -131,7 +131,7 @@ GEM
     launchy (2.4.3)
       addressable (~> 2.3)
     logster (2.3.0)
-    loofah (2.2.2)
+    loofah (2.18.0)
       crass (~> 1.0.2)
       nokogiri (>= 1.5.9)
     mail (2.7.0)
@@ -208,8 +208,8 @@ GEM
     rails-dom-testing (2.0.3)
       activesupport (>= 4.2.0)
       nokogiri (>= 1.6)
-    rails-html-sanitizer (1.0.4)
-      loofah (~> 2.2, >= 2.2.2)
+    rails-html-sanitizer (1.4.3)
+      loofah (~> 2.3)
     rails_12factor (0.0.3)
       rails_serve_static_assets
       rails_stdout_logging