diff --git a/Gemfile.lock b/Gemfile.lock
index fa10a8b4..23dde287 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -160,7 +160,7 @@ GEM
       ruby-rc4
       ttfunk
     public_suffix (5.0.4)
-    racc (1.7.1)
+    racc (1.7.3)
     rack (2.2.7)
     rack-livereload (0.3.17)
       rack