@@ -508,6 +508,7 @@ defaultStablePackages ghcVer requireHP = unPackageMap $ execWriter $ do
508508 --peg "aws" "< 0.10"
509509 peg "pandoc" "< 1.13"
510510 peg "texmath" "<= 0.6.6.3"
511+ peg "checkers" "== 0.3.2"
511512
512513add :: String -> String -> Writer PackageMap ()
513514add maintainer package = addRange maintainer package "-any"