diff --git a/Gemfile.lock b/Gemfile.lock
index 54a223f..f679442 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -1,8 +1,8 @@
 GEM
   remote: https://rubygems.org/
   specs:
-    addressable (2.5.2)
-      public_suffix (>= 2.0.2, < 4.0)
+    addressable (2.8.0)
+      public_suffix (>= 2.0.2, < 5.0)
     autoprefixer-rails (6.7.7.1)
       execjs
     bourbon (4.3.3)
@@ -84,7 +84,7 @@ GEM
     pathutil (0.16.2)
       forwardable-extended (~> 2.6)
     progress (3.3.1)
-    public_suffix (3.0.3)
+    public_suffix (4.0.6)
     rack (1.6.13)
     rb-fsevent (0.10.3)
     rb-inotify (0.10.0)