diff --git a/pkgs/development/python-modules/cryptography/default.nix b/pkgs/development/python-modules/cryptography/default.nix
index b15120937f7a..197d66daa0ba 100644
--- a/pkgs/development/python-modules/cryptography/default.nix
+++ b/pkgs/development/python-modules/cryptography/default.nix
@@ -10,7 +10,7 @@
 , six
 , isPyPy
 , cffi
-, pytest
+, pytestCheckHook
 , pytest-subtests
 , pretend
 , libiconv
@@ -61,24 +61,20 @@ buildPythonPackage rec {
     hypothesis
     iso8601
     pretend
-    pytest
+    pytestCheckHook
     pytest-subtests
     pytz
   ];
 
-  pytestFlags = lib.concatStringsSep " " ([
+  pytestFlagsArray = [
     "--disable-pytest-warnings"
-  ] ++
-    lib.optionals (stdenv.isDarwin && stdenv.isAarch64) [
-      # aarch64-darwin forbids W+X memory, but this tests depends on it:
-      # * https://cffi.readthedocs.io/en/latest/using.html#callbacks
-      "--ignore=tests/hazmat/backends/test_openssl_memleak.py"
-    ]
-  );
+  ];
 
-  checkPhase = ''
-    py.test ${pytestFlags} tests
-  '';
+  disabledTestPaths = lib.optionals (stdenv.isDarwin && stdenv.isAarch64) [
+    # aarch64-darwin forbids W+X memory, but this tests depends on it:
+    # * https://cffi.readthedocs.io/en/latest/using.html#callbacks
+    "--ignore=tests/hazmat/backends/test_openssl_memleak.py"
+  ];
 
   meta = with lib; {
     description = "A package which provides cryptographic recipes and primitives";