diff --git a/Library/Homebrew/utils/pypi.rb b/Library/Homebrew/utils/pypi.rb
index c4fa8af52f..2599a9f503 100644
--- a/Library/Homebrew/utils/pypi.rb
+++ b/Library/Homebrew/utils/pypi.rb
@@ -8,6 +8,7 @@ module PyPI
   AUTOMATIC_RESOURCE_UPDATE_BLOCKLIST = %w[
     ansible
     ansible@2.8
+    cloudformation-cli
     diffoscope
     dxpy
     molecule