diff --git a/Gemfile.lock b/Gemfile.lock
index ea141c4..254372c 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -88,6 +88,7 @@ GEM
       execjs
     coffee-script-source (1.12.2)
     concurrent-ruby (1.0.5)
+    crass (1.0.6)
     devise (4.3.0)
       bcrypt (~> 3.0)
       orm_adapter (~> 0.1)
@@ -113,7 +114,8 @@ GEM
       rb-fsevent (~> 0.9, >= 0.9.4)
       rb-inotify (~> 0.9, >= 0.9.7)
       ruby_dep (~> 1.2)
-    loofah (2.0.3)
+    loofah (2.19.1)
+      crass (~> 1.0.2)
       nokogiri (>= 1.5.9)
     mail (2.6.6)
       mime-types (>= 1.16, < 4)
@@ -122,20 +124,22 @@ GEM
       mime-types-data (~> 3.2015)
     mime-types-data (3.2016.0521)
     mini_mime (0.1.4)
-    mini_portile2 (2.2.0)
+    mini_portile2 (2.8.0)
     minitest (5.10.3)
     multi_json (1.12.1)
     net-scp (1.2.1)
       net-ssh (>= 2.6.5)
     net-ssh (4.1.0)
     nio4r (2.1.0)
-    nokogiri (1.8.0)
-      mini_portile2 (~> 2.2.0)
+    nokogiri (1.13.10)
+      mini_portile2 (~> 2.8.0)
+      racc (~> 1.4)
     orm_adapter (0.5.0)
     pg (0.21.0)
     popper_js (1.11.1)
     public_suffix (2.0.5)
     puma (3.9.1)
+    racc (1.6.1)
     rack (2.0.3)
     rack-test (0.6.3)
       rack (>= 1.0)
@@ -154,8 +158,8 @@ GEM
     rails-dom-testing (2.0.3)
       activesupport (>= 4.2.0)
       nokogiri (>= 1.6)
-    rails-html-sanitizer (1.0.3)
-      loofah (~> 2.0)
+    rails-html-sanitizer (1.4.4)
+      loofah (~> 2.19, >= 2.19.1)
     railties (5.1.3)
       actionpack (= 5.1.3)
       activesupport (= 5.1.3)