diff --git a/Gemfile.lock b/Gemfile.lock
index 5fc8b60..33bc92c 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -117,7 +117,7 @@ GEM
       rb-fsevent (~> 0.9, >= 0.9.4)
       rb-inotify (~> 0.9, >= 0.9.7)
       ruby_dep (~> 1.2)
-    loofah (2.5.0)
+    loofah (2.18.0)
       crass (~> 1.0.2)
       nokogiri (>= 1.5.9)
     mail (2.7.1)
@@ -131,10 +131,10 @@ GEM
     minitest (5.14.3)
     multi_json (1.13.1)
     nio4r (2.3.1)
-    nokogiri (1.13.4)
+    nokogiri (1.13.6)
       mini_portile2 (~> 2.8.0)
       racc (~> 1.4)
-    nokogiri (1.13.4-x86-mingw32)
+    nokogiri (1.13.6-x86-mingw32)
       racc (~> 1.4)
     pg (1.1.4)
     pg (1.1.4-x86-mingw32)
@@ -159,7 +159,7 @@ 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 (5.1.7)
       actionpack (= 5.1.7)