diff --git a/Gemfile.lock b/Gemfile.lock
index 913f1ee..f1c60be 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -6,8 +6,8 @@ GEM
       i18n (>= 0.7, < 2)
       minitest (~> 5.1)
       tzinfo (~> 1.1)
-    addressable (2.8.0)
-      public_suffix (>= 2.0.2, < 5.0)
+    addressable (2.9.0)
+      public_suffix (>= 2.0.2, < 8.0)
     autoprefixer-rails (6.3.7)
       execjs
     colorator (1.1.0)
@@ -87,7 +87,7 @@ GEM
       racc (~> 1.4)
     pathutil (0.16.2)
       forwardable-extended (~> 2.6)
-    public_suffix (4.0.6)
+    public_suffix (5.1.1)
     racc (1.7.3)
     rack (2.2.22)
     rb-fsevent (0.10.3)