diff --git a/Gemfile.lock b/Gemfile.lock
index 82fd788..06d0a11 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -119,7 +119,7 @@ GEM
     coffee-script-source (1.8.0)
     columnize (0.8.9)
     concurrent-ruby (1.1.4)
-    crass (1.0.4)
+    crass (1.0.6)
     dalli (2.7.9)
     debugger-linecache (1.2.0)
     devise (3.4.0)
@@ -167,7 +167,7 @@ GEM
       thor (>= 0.14, < 2.0)
     json (1.8.6)
     jwt (2.1.0)
-    loofah (2.2.3)
+    loofah (2.19.1)
       crass (~> 1.0.2)
       nokogiri (>= 1.5.9)
     machinist (2.0)
@@ -176,7 +176,7 @@ GEM
     meta_programming (0.2.2)
     method_source (0.8.2)
     mini_mime (1.0.1)
-    mini_portile2 (2.4.0)
+    mini_portile2 (2.8.0)
     minitest (5.11.3)
     multi_json (1.13.1)
     multi_xml (0.6.0)
@@ -186,8 +186,9 @@ GEM
       net-ssh (>= 2.6.5)
     net-ssh (3.2.0)
     newrelic_rpm (3.9.6.257)
-    nokogiri (1.9.1)
-      mini_portile2 (~> 2.4.0)
+    nokogiri (1.13.10)
+      mini_portile2 (~> 2.8.0)
+      racc (~> 1.4)
     oauth2 (1.4.1)
       faraday (>= 0.8, < 0.16.0)
       jwt (>= 1.0, < 3.0)
@@ -218,6 +219,7 @@ GEM
       byebug (~> 3.4)
       pry (~> 0.10)
     puma (3.0.2)
+    racc (1.6.1)
     rack (1.6.11)
     rack-openid (1.3.1)
       rack (>= 1.1.0)
@@ -244,8 +246,8 @@ GEM
       activesupport (>= 4.2.0, < 5.0)
       nokogiri (~> 1.6)
       rails-deprecated_sanitizer (>= 1.0.1)
-    rails-html-sanitizer (1.0.4)
-      loofah (~> 2.2, >= 2.2.2)
+    rails-html-sanitizer (1.4.4)
+      loofah (~> 2.19, >= 2.19.1)
     railties (4.2.11)
       actionpack (= 4.2.11)
       activesupport (= 4.2.11)