diff --git a/Gemfile.lock b/Gemfile.lock
index 8717504..aea953c 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -81,7 +81,7 @@ GEM
       execjs
     coffee-script-source (1.12.2)
     concurrent-ruby (1.1.5)
-    crass (1.0.5)
+    crass (1.0.6)
     erubi (1.8.0)
     execjs (2.7.0)
     faraday (0.15.4)
@@ -104,7 +104,7 @@ GEM
       rb-fsevent (~> 0.9, >= 0.9.4)
       rb-inotify (~> 0.9, >= 0.9.7)
       ruby_dep (~> 1.2)
-    loofah (2.3.1)
+    loofah (2.19.1)
       crass (~> 1.0.2)
       nokogiri (>= 1.5.9)
     mail (2.7.1)
@@ -149,7 +149,7 @@ GEM
     public_suffix (4.0.6)
     puma (4.3.9)
       nio4r (~> 2.0)
-    racc (1.5.2)
+    racc (1.6.1)
     rack (2.2.3)
     rack-proxy (0.6.5)
       rack