fix 9.0.1 build

Author: pepeiborra

cabal-ghc901.project

@@ -39,6 +39,11 @@ source-repository-package
   tag: b6245884ae83e00dd2b5261762549b37390179f8
   -- https://github.com/lspitzner/czipwith/pull/2
 
+source-repository-package
+  type: git
+  location: https://github.com/hsyl20/ghc-api-compat
+  tag: 8fee87eac97a538dbe81ff1ab18cff10f2f9fa15
+
 source-repository-package
   type: git
   location: https://github.com/anka-213/th-extras