diff --git a/Gemfile.lock b/Gemfile.lock
index 389f60c..abd8133 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -100,7 +100,7 @@ GEM
       rb-fsevent (~> 0.9, >= 0.9.4)
       rb-inotify (~> 0.9, >= 0.9.7)
       ruby_dep (~> 1.2)
-    loofah (2.4.0)
+    loofah (2.18.0)
       crass (~> 1.0.2)
       nokogiri (>= 1.5.9)
     lumberjack (1.2.4)
@@ -108,7 +108,7 @@ GEM
       mini_mime (>= 0.1.1)
     method_source (1.0.0)
     mini_mime (1.0.2)
-    mini_portile2 (2.7.1)
+    mini_portile2 (2.8.0)
     minitest (5.10.3)
     minitest-reporters (1.1.14)
       ansi
@@ -118,8 +118,8 @@ GEM
     multi_json (1.14.1)
     nenv (0.3.0)
     nio4r (2.5.2)
-    nokogiri (1.13.1)
-      mini_portile2 (~> 2.7.0)
+    nokogiri (1.13.6)
+      mini_portile2 (~> 2.8.0)
       racc (~> 1.4)
     notiffany (0.1.3)
       nenv (~> 0.1)
@@ -154,7 +154,7 @@ GEM
     rails-dom-testing (2.0.3)
       activesupport (>= 4.2.0)
       nokogiri (>= 1.6)
-    rails-html-sanitizer (1.3.0)
+    rails-html-sanitizer (1.4.3)
       loofah (~> 2.3)
     railties (5.1.6)
       actionpack (= 5.1.6)