diff --git a/pkgs/development/python-modules/graphql-relay/default.nix b/pkgs/development/python-modules/graphql-relay/default.nix
index a358ab4fe914..1d53dc62587d 100644
--- a/pkgs/development/python-modules/graphql-relay/default.nix
+++ b/pkgs/development/python-modules/graphql-relay/default.nix
@@ -35,6 +35,7 @@ buildPythonPackage rec {
   #
   postPatch = ''
     substituteInPlace pyproject.toml \
+      --replace-fail "poetry_core>=1,<2" "poetry-core" \
       --replace ', "setuptools>=59,<70"' ""
   '';