diff --git a/Gemfile.lock b/Gemfile.lock
index e9cdb404..f5a43579 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -205,7 +205,7 @@ GEM
     listen (3.7.0)
       rb-fsevent (~> 0.10, >= 0.10.3)
       rb-inotify (~> 0.9, >= 0.9.10)
-    loofah (2.18.0)
+    loofah (2.19.1)
       crass (~> 1.0.2)
       nokogiri (>= 1.5.9)
     lumberjack (1.2.8)
@@ -226,7 +226,7 @@ GEM
     nenv (0.3.0)
     nested_form (0.3.2)
     nio4r (2.5.8)
-    nokogiri (1.13.7)
+    nokogiri (1.13.10)
       mini_portile2 (~> 2.8.0)
       racc (~> 1.4)
     notiffany (0.1.3)
@@ -245,7 +245,7 @@ GEM
       nio4r (~> 2.0)
     pundit (2.1.1)
       activesupport (>= 3.0.0)
-    racc (1.6.0)
+    racc (1.6.1)
     rack-test (0.6.3)
       rack (>= 1.0)
     rack_session_access (0.2.0)
@@ -268,8 +268,8 @@ GEM
       activesupport (>= 4.2.0, < 5.0)
       nokogiri (~> 1.6)
       rails-deprecated_sanitizer (>= 1.0.1)
-    rails-html-sanitizer (1.4.3)
-      loofah (~> 2.3)
+    rails-html-sanitizer (1.4.4)
+      loofah (~> 2.19, >= 2.19.1)
     railties (4.2.11.3)
       actionpack (= 4.2.11.3)
       activesupport (= 4.2.11.3)