diff --git a/build-constraints.yaml b/build-constraints.yaml
index fee486d2..97a8ce15 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -1,6 +1,6 @@
-ghc-major-version: "8.10"
+ghc-major-version: "9.0"
 # new curator is supposed to use exact GHC version
-ghc-version: "8.10.4"
+ghc-version: "9.0.1"
 
 # This affects which version of the Cabal file format we allow. We
 # should ensure that this is always no greater than the version