diff --git a/Library/Homebrew/Gemfile.lock b/Library/Homebrew/Gemfile.lock
index 0fa2c3fbb3..df9d7fc89b 100644
--- a/Library/Homebrew/Gemfile.lock
+++ b/Library/Homebrew/Gemfile.lock
@@ -158,7 +158,7 @@ GEM
     ruby-macho (3.0.0)
     ruby-progressbar (1.11.0)
     rubyntlm (0.6.3)
-    simplecov (0.21.2)
+    simplecov (0.22.0)
       docile (~> 1.1)
       simplecov-html (~> 0.11)
       simplecov_json_formatter (~> 0.1)