diff --git a/Gemfile.lock b/Gemfile.lock
index 3cd603ed3..ac4d0441d 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -61,8 +61,8 @@ GEM
       i18n (~> 0.7)
       minitest (~> 5.1)
       tzinfo (~> 1.1)
-    addressable (2.5.0)
-      public_suffix (~> 2.0, >= 2.0.2)
+    addressable (2.8.0)
+      public_suffix (>= 2.0.2, < 5.0)
     ancestry (2.0.0)
       activerecord (>= 3.0.0)
     ansi (1.5.0)