diff --git a/Gemfile.lock b/Gemfile.lock
index 1770bb715f..1420bd9c59 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -210,7 +210,7 @@ GEM
       hashery (~> 2.0)
       ruby-rc4
       ttfunk
-    public_suffix (6.0.0)
+    public_suffix (6.0.1)
     racc (1.8.0)
     rack (2.2.9)
     rack-livereload (0.3.17)