diff --git a/build-constraints.yaml b/build-constraints.yaml
index f5c59725..7a5975fb 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -2532,7 +2532,7 @@ packages:
         - nagios-check
 
     "Peter Simons <simons@cryp.to> @peti":
-        - cabal2nix < 0 # ghc 8.10
+        - cabal2nix # 0 # ghc 8.10
         - cabal2spec
         - cgi
         - distribution-nixpkgs
@@ -4878,7 +4878,7 @@ packages:
 
     "Stackage upper bounds":
       # https://github.com/commercialhaskell/stackage/issues/5324
-      - cabal2nix < 2.15.2
+      - cabal2nix # 2.15.2
 
       # https://github.com/commercialhaskell/stackage/issues/5347
       - persistent-template < 2.8.3