diff --git a/Gemfile.lock b/Gemfile.lock
index e359e62..9cb38cc 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -193,7 +193,7 @@ GEM
       method_source (~> 0.9.0)
     pry-rails (0.3.6)
       pry (>= 0.10.4)
-    public_suffix (3.0.0)
+    public_suffix (3.0.1)
     rack (2.0.3)
     rack-livereload (0.3.16)
       rack