diff --git a/pkgs/by-name/me/memtree/package.nix b/pkgs/by-name/me/memtree/package.nix
index daf2bfa39ec8..f69c3f8e95d3 100644
--- a/pkgs/by-name/me/memtree/package.nix
+++ b/pkgs/by-name/me/memtree/package.nix
@@ -18,7 +18,6 @@ python3Packages.buildPythonApplication {
 
   nativeBuildInputs = with python3Packages; [
     poetry-core
-    pytestCheckHook
   ];
 
   propagatedBuildInputs = with python3Packages; [
@@ -27,7 +26,7 @@ python3Packages.buildPythonApplication {
 
   nativeCheckInputs = with python3Packages; [
     hypothesis
-    pytest
+    pytestCheckHook
   ];
 
   pytestFlagsArray = [ "-v" ];