diff --git a/pkgs/development/python-modules/hypothesis-auto/default.nix b/pkgs/development/python-modules/hypothesis-auto/default.nix
index 7dcaf5cd0578..13457576cdb4 100644
--- a/pkgs/development/python-modules/hypothesis-auto/default.nix
+++ b/pkgs/development/python-modules/hypothesis-auto/default.nix
@@ -5,6 +5,7 @@
   hypothesis,
   poetry-core,
   pydantic,
+  pytest,
   pytestCheckHook,
   pythonOlder,
 }:
@@ -34,6 +35,10 @@ buildPythonPackage rec {
     pydantic
   ];
 
+  optional-dependencies = {
+    pytest = [ pytest ];
+  };
+
   pythonImportsCheck = [ "hypothesis_auto" ];
 
   nativeCheckInputs = [ pytestCheckHook ];