diff --git a/Gemfile.lock b/Gemfile.lock
index 785d072..ce87208 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -52,8 +52,8 @@ GEM
     adamantium (0.2.0)
       ice_nine (~> 0.11.0)
       memoizable (~> 0.4.0)
-    addressable (2.7.0)
-      public_suffix (>= 2.0.2, < 5.0)
+    addressable (2.8.1)
+      public_suffix (>= 2.0.2, < 6.0)
     anima (0.3.2)
       abstract_type (~> 0.0.7)
       adamantium (~> 0.2)
@@ -290,7 +290,7 @@ GEM
       ast (~> 2.4.1)
     pg (1.2.3)
     procto (0.0.3)
-    public_suffix (4.0.6)
+    public_suffix (5.0.0)
     puma (3.12.6)
     raabro (1.3.1)
     rack (2.2.3)