diff --git a/Library/Homebrew/dev-cmd/bump-cask-pr.rb b/Library/Homebrew/dev-cmd/bump-cask-pr.rb
index 3654de10b283f2..4bfdd79aa47b46 100644
--- a/Library/Homebrew/dev-cmd/bump-cask-pr.rb
+++ b/Library/Homebrew/dev-cmd/bump-cask-pr.rb
@@ -89,6 +89,14 @@ def bump_cask_pr
     odie "This cask is not in a tap!" if cask.tap.blank?
     odie "This cask's tap is not a Git repository!" unless cask.tap.git?
 
+    autobump_file_path = cask.tap.path/".github/autobump.txt"
+    if cask.tap.core_cask_tap? && File.readlines(autobump_file_path).grep(/#{cask.name}/).any?
+      odie <<~EOS
+        This cask is autobumped!
+        Don't worry, BrewTestBot will automatically bump it for you!
+      EOS
+    end
+
     new_version = BumpVersionParser.new(
       general: args.version,
       intel:   args.version_intel,
diff --git a/Library/Homebrew/dev-cmd/bump-formula-pr.rb b/Library/Homebrew/dev-cmd/bump-formula-pr.rb
index 634fa73110e28b..252fffa354994f 100644
--- a/Library/Homebrew/dev-cmd/bump-formula-pr.rb
+++ b/Library/Homebrew/dev-cmd/bump-formula-pr.rb
@@ -112,6 +112,14 @@ def bump_formula_pr
     odie "This formula is not in a tap!" if formula.tap.blank?
     odie "This formula's tap is not a Git repository!" unless formula.tap.git?
 
+    autobump_file_path = formula.tap.path/".github/autobump.txt"
+    if formula.tap.core_tap? && File.readlines(autobump_file_path).grep(/#{formula.name}/).any?
+      odie <<~EOS
+        This formula is autobumped!
+        Don't worry, BrewTestBot will automatically bump it for you!
+      EOS
+    end
+
     formula_spec = formula.stable
     odie "#{formula}: no stable specification found!" if formula_spec.blank?