diff --git a/Gemfile.lock b/Gemfile.lock
index ee8d13fa1..d04371ac2 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -45,7 +45,8 @@ GEM
       uuidtools
     acts-as-taggable-on (4.0.0)
       activerecord (>= 4.0)
-    addressable (2.3.6)
+    addressable (2.8.1)
+      public_suffix (>= 2.0.2, < 6.0)
     afm (0.2.2)
     ahoy_matey (1.0.1)
       addressable
@@ -323,6 +324,7 @@ GEM
       coderay (~> 1.0.5)
       method_source (~> 0.8)
       slop (~> 3.4)
+    public_suffix (5.0.0)
     quiet_assets (1.1.0)
       railties (>= 3.1, < 5.0)
     rack (1.5.5)