diff --git a/Gemfile.lock b/Gemfile.lock
index 78c8399c..cfe943fb 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -80,7 +80,7 @@ GEM
       execjs
     coffee-script-source (1.12.2)
     concurrent-ruby (1.0.5)
-    crass (1.0.4)
+    crass (1.0.6)
     erubi (1.7.1)
     execjs (2.7.0)
     ffi (1.9.25)
@@ -116,7 +116,7 @@ GEM
       rb-fsevent (~> 0.9, >= 0.9.4)
       rb-inotify (~> 0.9, >= 0.9.7)
       ruby_dep (~> 1.2)
-    loofah (2.2.2)
+    loofah (2.19.1)
       crass (~> 1.0.2)
       nokogiri (>= 1.5.9)
     lumberjack (1.0.13)
@@ -125,9 +125,11 @@ GEM
     marcel (0.3.2)
       mimemagic (~> 0.3.2)
     method_source (0.9.0)
-    mimemagic (0.3.2)
+    mimemagic (0.3.10)
+      nokogiri (~> 1)
+      rake
     mini_mime (1.0.0)
-    mini_portile2 (2.3.0)
+    mini_portile2 (2.6.1)
     minitest (5.11.3)
     minitest-reporters (1.3.0)
       ansi
@@ -138,8 +140,9 @@ GEM
     multi_json (1.13.1)
     nenv (0.3.0)
     nio4r (2.3.1)
-    nokogiri (1.8.4)
-      mini_portile2 (~> 2.3.0)
+    nokogiri (1.12.5)
+      mini_portile2 (~> 2.6.1)
+      racc (~> 1.4)
     notiffany (0.1.1)
       nenv (~> 0.1)
       shellany (~> 0.0)
@@ -158,6 +161,7 @@ GEM
       method_source (~> 0.9.0)
     public_suffix (3.0.2)
     puma (3.11.4)
+    racc (1.6.1)
     rack (2.0.5)
     rack-test (1.0.0)
       rack (>= 1.0, < 3)