diff --git a/pkgs/development/python-modules/aio-geojson-generic-client/default.nix b/pkgs/development/python-modules/aio-geojson-generic-client/default.nix
index 4d10c5724970..343f47d2aca4 100644
--- a/pkgs/development/python-modules/aio-geojson-generic-client/default.nix
+++ b/pkgs/development/python-modules/aio-geojson-generic-client/default.nix
@@ -8,6 +8,7 @@
 , pytest-asyncio
 , pytestCheckHook
 , pythonOlder
+, pythonRelaxDepsHook
 , pytz
 , setuptools
 }:
@@ -29,9 +30,15 @@ buildPythonPackage rec {
   __darwinAllowLocalNetworking = true;
 
   nativeBuildInputs = [
+    pythonRelaxDepsHook
     setuptools
   ];
 
+  pythonRelaxDeps = [
+    # geojson>=2.4.0,<3, but we have 3.x
+    "geojson"
+  ];
+
   propagatedBuildInputs = [
     aiohttp
     aio-geojson-client