diff --git a/Library/Homebrew/Gemfile.lock b/Library/Homebrew/Gemfile.lock
index b643dfeaeb..391daa5a3e 100644
--- a/Library/Homebrew/Gemfile.lock
+++ b/Library/Homebrew/Gemfile.lock
@@ -41,7 +41,7 @@ GEM
     mime-types-data (3.2019.1009)
     mini_portile2 (2.4.0)
     minitest (5.13.0)
-    mustache (1.1.0)
+    mustache (1.1.1)
     net-http-digest_auth (1.4.1)
     net-http-persistent (3.1.0)
       connection_pool (~> 2.2)