diff --git a/Gemfile.lock b/Gemfile.lock
index b22d85ca..56a023e6 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -269,7 +269,7 @@ GEM
     orm_adapter (0.5.0)
     psych (5.1.0)
       stringio
-    public_suffix (4.0.6)
+    public_suffix (5.0.0)
     puma (5.0.0)
       nio4r (~> 2.0)
     rack (2.2.6.2)