diff --git a/Library/Homebrew/Gemfile.lock b/Library/Homebrew/Gemfile.lock
index 112e00e146..cf4f567c45 100644
--- a/Library/Homebrew/Gemfile.lock
+++ b/Library/Homebrew/Gemfile.lock
@@ -54,7 +54,7 @@ GEM
     method_source (1.0.0)
     mime-types (3.3.1)
       mime-types-data (~> 3.2015)
-    mime-types-data (3.2021.0901)
+    mime-types-data (3.2021.1115)
     mini_portile2 (2.6.1)
     minitest (5.14.4)
     msgpack (1.4.2)