diff --git a/Gemfile.lock b/Gemfile.lock
index 9a6c1ea53f..ca5b0d2c1c 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -183,7 +183,7 @@ GEM
       hashery (~> 2.0)
       ruby-rc4
       ttfunk
-    public_suffix (5.0.3)
+    public_suffix (5.0.4)
     racc (1.7.3)
     rack (2.2.8)
     rack-livereload (0.3.17)