diff --git a/Gemfile.lock b/Gemfile.lock
index 37f122c800ab261ede4f3477ccb434719a854e47..5bc378d6d3dd81346909d57536b9504e2209328d 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -184,7 +184,7 @@ GEM
       factory_girl (~> 4.7)
     diff-lcs (1.3)
     docile (1.1.5)
-    domain_name (0.5.20160615)
+    domain_name (0.5.20170223)
       unf (>= 0.0.5, < 1.0.0)
     entypo-rails (3.0.0.pre.rc2)
       railties (>= 4.1, <= 5)