diff --git a/Library/Homebrew/dev-cmd/update-test.rb b/Library/Homebrew/dev-cmd/update-test.rb
index 3cf095f2b2..add05bc7c4 100644
--- a/Library/Homebrew/dev-cmd/update-test.rb
+++ b/Library/Homebrew/dev-cmd/update-test.rb
@@ -36,7 +36,7 @@ module Homebrew
       previous_tag =
         Utils.popen_read("git", "tag", "--list", "--sort=-version:refname").lines[1]
       unless previous_tag
-        safe_system "git", "fetch", "--tags"
+        safe_system "git", "fetch", "--tags", "--depth=1"
         previous_tag =
           Utils.popen_read("git", "tag", "--list", "--sort=-version:refname").lines[1]
       end