diff --git a/Gemfile.lock b/Gemfile.lock
index 795b9eda369..32cf45e60b7 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -119,7 +119,6 @@ PLATFORMS
   ruby
 
 DEPENDENCIES
-  pkg-config (~> 1.1)
   middleman (~> 4.2.1)
   middleman-autoprefixer (~> 2.7.0)
   middleman-sprockets (~> 4.1.0)