diff --git a/Gemfile.lock b/Gemfile.lock
index b2cdd33..afcb09a 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -76,7 +76,7 @@ GEM
     concurrent-ruby (1.0.5)
     crack (0.4.3)
       safe_yaml (~> 1.0.0)
-    crass (1.0.2)
+    crass (1.0.6)
     database_cleaner (1.6.1)
     devise (4.3.0)
       bcrypt (~> 3.0)
@@ -141,7 +141,7 @@ GEM
     kgio (2.11.0)
     launchy (2.4.3)
       addressable (~> 2.3)
-    loofah (2.1.1)
+    loofah (2.19.1)
       crass (~> 1.0.2)
       nokogiri (>= 1.5.9)
     mail (2.6.6)
@@ -149,16 +149,18 @@ GEM
     mime-types (3.1)
       mime-types-data (~> 3.2015)
     mime-types-data (3.2016.0521)
-    mini_portile2 (2.3.0)
+    mini_portile2 (2.8.0)
     minitest (5.10.3)
     multi_json (1.12.2)
-    nokogiri (1.8.1)
-      mini_portile2 (~> 2.3.0)
+    nokogiri (1.13.10)
+      mini_portile2 (~> 2.8.0)
+      racc (~> 1.4)
     orm_adapter (0.5.0)
     pg (0.21.0)
     polyamorous (1.3.1)
       activerecord (>= 3.0)
     public_suffix (3.0.0)
+    racc (1.6.1)
     rack (1.6.8)
     rack-test (0.6.3)
       rack (>= 1.0)
@@ -179,8 +181,8 @@ GEM
       activesupport (>= 4.2.0.beta, < 5.0)
       nokogiri (~> 1.6)
       rails-deprecated_sanitizer (>= 1.0.1)
-    rails-html-sanitizer (1.0.3)
-      loofah (~> 2.0)
+    rails-html-sanitizer (1.4.4)
+      loofah (~> 2.19, >= 2.19.1)
     rails_12factor (0.0.3)
       rails_serve_static_assets
       rails_stdout_logging