diff --git a/build-constraints.yaml b/build-constraints.yaml
index 001a54f4..ad86aa44 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -5,7 +5,7 @@ ghc-version: "8.8.3"
 # This affects which version of the Cabal file format we allow. We
 # should ensure that this is always no greater than the version
 # supported by the most recent cabal-install and Stack releases.
-cabal-format-version: "2.4"
+cabal-format-version: "3.0"
 
 # Constraints for brand new builds
 packages: