diff --git a/Gemfile.lock b/Gemfile.lock
index 2bce038..4169f59 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -55,7 +55,7 @@ GEM
       execjs
     coffee-script-source (1.7.1)
     concurrent-ruby (1.1.3)
-    crass (1.0.4)
+    crass (1.0.6)
     descendants_tracker (0.0.4)
       thread_safe (~> 0.3, >= 0.3.1)
     dotenv (2.2.0)
@@ -103,7 +103,7 @@ GEM
       thor (>= 0.14, < 2.0)
     json (1.8.6)
     jwt (1.0.0)
-    loofah (2.2.3)
+    loofah (2.19.1)
       crass (~> 1.0.2)
       nokogiri (>= 1.5.9)
     mail (2.7.1)
@@ -113,11 +113,12 @@ GEM
       json (>= 1.7.7, < 2.0)
     method_source (0.8.2)
     mini_mime (1.0.1)
-    mini_portile2 (2.3.0)
+    mini_portile2 (2.6.1)
     minitest (5.11.3)
     multi_json (1.13.1)
-    nokogiri (1.8.5)
-      mini_portile2 (~> 2.3.0)
+    nokogiri (1.12.5)
+      mini_portile2 (~> 2.6.1)
+      racc (~> 1.4)
     pg (0.21.0)
     pry (0.10.0)
       coderay (~> 1.1.0)
@@ -125,6 +126,7 @@ GEM
       slop (~> 3.4)
     quiet_assets (1.0.3)
       railties (>= 3.1, < 5.0)
+    racc (1.6.1)
     rack (1.6.11)
     rack-test (0.6.3)
       rack (>= 1.0)
@@ -145,8 +147,8 @@ 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)
     rails_12factor (0.0.2)
       rails_serve_static_assets
       rails_stdout_logging