diff --git a/Gemfile.lock b/Gemfile.lock
index 75d9565..ea5d2b0 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -67,7 +67,7 @@ GEM
     listen (3.0.8)
       rb-fsevent (~> 0.9, >= 0.9.4)
       rb-inotify (~> 0.9, >= 0.9.7)
-    loofah (2.9.0)
+    loofah (2.18.0)
       crass (~> 1.0.2)
       nokogiri (>= 1.5.9)
     mail (2.6.6)
@@ -76,17 +76,17 @@ GEM
     mime-types (3.1)
       mime-types-data (~> 3.2015)
     mime-types-data (3.2016.0521)
-    mini_portile2 (2.5.1)
+    mini_portile2 (2.8.0)
     minitest (5.10.3)
     multi_json (1.12.2)
     nio4r (2.1.0)
-    nokogiri (1.11.4)
-      mini_portile2 (~> 2.5.0)
+    nokogiri (1.13.6)
+      mini_portile2 (~> 2.8.0)
       racc (~> 1.4)
     pg (0.20.0)
     puma (4.3.8)
       nio4r (~> 2.0)
-    racc (1.5.2)
+    racc (1.6.0)
     rack (2.2.3)
     rack-test (0.6.3)
       rack (>= 1.0)
@@ -105,8 +105,8 @@ 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)