diff --git a/Gemfile.lock b/Gemfile.lock
index f668892..0eae3d0 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -5,8 +5,8 @@ GEM
     adamantium (0.2.0)
       ice_nine (~> 0.11.0)
       memoizable (~> 0.4.0)
-    addressable (2.6.0)
-      public_suffix (>= 2.0.2, < 4.0)
+    addressable (2.8.1)
+      public_suffix (>= 2.0.2, < 6.0)
     anima (0.3.1)
       abstract_type (~> 0.0.7)
       adamantium (~> 0.2)
@@ -119,7 +119,7 @@ GEM
     pry (0.12.2)
       coderay (~> 1.1.0)
       method_source (~> 0.9.0)
-    public_suffix (3.1.1)
+    public_suffix (5.0.0)
     rack (2.0.7)
     rack-test (1.1.0)
       rack (>= 1.0, < 3)