diff --git a/Gemfile.lock b/Gemfile.lock
index 4ba8c95..95844c8 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -80,7 +80,7 @@ GEM
       execjs
     coffee-script-source (1.12.2)
     concurrent-ruby (1.0.5)
-    crass (1.0.3)
+    crass (1.0.6)
     devise (4.3.0)
       bcrypt (~> 3.0)
       orm_adapter (~> 0.1)
@@ -143,7 +143,7 @@ GEM
     listen (3.0.8)
       rb-fsevent (~> 0.9, >= 0.9.4)
       rb-inotify (~> 0.9, >= 0.9.7)
-    loofah (2.1.1)
+    loofah (2.18.0)
       crass (~> 1.0.2)
       nokogiri (>= 1.5.9)
     mail (2.7.0)
@@ -154,17 +154,19 @@ GEM
     mime-types-data (3.2016.0521)
     mini_magick (4.8.0)
     mini_mime (1.0.0)
-    mini_portile2 (2.3.0)
+    mini_portile2 (2.8.0)
     minitest (5.11.3)
     multi_json (1.13.1)
     multipart-post (2.0.0)
     nio4r (2.2.0)
-    nokogiri (1.8.2)
-      mini_portile2 (~> 2.3.0)
+    nokogiri (1.13.6)
+      mini_portile2 (~> 2.8.0)
+      racc (~> 1.4)
     orm_adapter (0.5.0)
     pg (0.21.0)
     popper_js (1.11.1)
     puma (3.11.2)
+    racc (1.6.0)
     rack (2.0.4)
     rack-test (0.6.3)
       rack (>= 1.0)
@@ -184,8 +186,8 @@ 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 (1.4.3)
+      loofah (~> 2.3)
     railties (5.0.6)
       actionpack (= 5.0.6)
       activesupport (= 5.0.6)