diff --git a/pkgs/development/python-modules/fido2/default.nix b/pkgs/development/python-modules/fido2/default.nix
index ac8e912ba3d..1e1af8e9591 100644
--- a/pkgs/development/python-modules/fido2/default.nix
+++ b/pkgs/development/python-modules/fido2/default.nix
@@ -9,17 +9,27 @@
 
 buildPythonPackage rec {
   pname = "fido2";
-  version = "0.8.1";
+  version = "0.9.1";
 
   src = fetchPypi {
     inherit pname version;
-    sha256 = "1hzprnd407g2xh9kyv8j8pq949hwr1snmg3fp65pqfbghzv6i424";
+    hash = "sha256-hoDuJSOOIwdZbrOQCg+MDZzJEYkUbtgDlUTxo6ad/m4=";
   };
 
   propagatedBuildInputs = [ six cryptography ];
 
   checkInputs = [ mock pyfakefs ];
 
+  # Testing with `python setup.py test` doesn't work:
+  # https://github.com/Yubico/python-fido2/issues/108#issuecomment-763513576
+  checkPhase = ''
+    runHook preCheck
+
+    python -m unittest discover -v
+
+    runHook postCheck
+  '';
+
   pythonImportsCheck = [ "fido2" ];
 
   meta = with lib; {