diff --git a/Gemfile.lock b/Gemfile.lock
index b073c5b7a..2918d6f9a 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -185,7 +185,7 @@ GEM
       activerecord
       kaminari-core (= 1.2.1)
     kaminari-core (1.2.1)
-    loofah (2.12.0)
+    loofah (2.18.0)
       crass (~> 1.0.2)
       nokogiri (>= 1.5.9)
     mail (2.7.1)
@@ -203,9 +203,9 @@ GEM
     naught (1.1.0)
     newrelic_rpm (8.0.0)
     nio4r (2.5.8)
-    nokogiri (1.12.5-x86_64-darwin)
+    nokogiri (1.13.6-x86_64-darwin)
       racc (~> 1.4)
-    nokogiri (1.12.5-x86_64-linux)
+    nokogiri (1.13.6-x86_64-linux)
       racc (~> 1.4)
     oauth (0.5.6)
     oauth2 (1.4.7)
@@ -250,7 +250,7 @@ GEM
       nio4r (~> 2.0)
     rabl (0.14.5)
       activesupport (>= 2.3.14)
-    racc (1.5.2)
+    racc (1.6.0)
     rack (2.2.3)
     rack-attack (6.5.0)
       rack (>= 1.0, < 3)
@@ -282,7 +282,7 @@ GEM
     rails-dom-testing (2.0.3)
       activesupport (>= 4.2.0)
       nokogiri (>= 1.6)
-    rails-html-sanitizer (1.4.2)
+    rails-html-sanitizer (1.4.3)
       loofah (~> 2.3)
     rails-i18n (5.1.3)
       i18n (>= 0.7, < 2)