diff --git a/pkgs/development/python-modules/flufl/lock.nix b/pkgs/development/python-modules/flufl/lock.nix
index 1be5d9a7c4c..b44a7f3cdfe 100644
--- a/pkgs/development/python-modules/flufl/lock.nix
+++ b/pkgs/development/python-modules/flufl/lock.nix
@@ -1,13 +1,24 @@
-{ buildPythonPackage, fetchPypi, atpublic }:
+{ lib, buildPythonPackage, fetchPypi, pytestCheckHook
+, atpublic, psutil, pytestcov, sybil
+}:
 
 buildPythonPackage rec {
   pname = "flufl.lock";
-  version = "3.2";
-
-  propagatedBuildInputs = [ atpublic ];
+  version = "5.0.5";
 
   src = fetchPypi {
     inherit pname version;
-    sha256 = "0nzzd6l30ff6cwsrlrb94xzfja4wkyrqv3ydc6cz0hdbr766mmm8";
+    sha256 = "1bnapkg99r6mixn3kh314bqcfk8q54y0cvhjpj87j7dhjpsakfpz";
+  };
+
+  propagatedBuildInputs = [ atpublic psutil ];
+  checkInputs = [ pytestCheckHook pytestcov sybil ];
+
+  meta = with lib; {
+    homepage = "https://flufllock.readthedocs.io/";
+    description = "NFS-safe file locking with timeouts for POSIX and Windows";
+    maintainers = with maintainers; [ qyliss ];
+    license = licenses.asl20;
+    platforms = platforms.all;
   };
 }
diff --git a/pkgs/servers/mail/mailman/hyperkitty.nix b/pkgs/servers/mail/mailman/hyperkitty.nix
index 5500f465852..99eae786cbf 100644
--- a/pkgs/servers/mail/mailman/hyperkitty.nix
+++ b/pkgs/servers/mail/mailman/hyperkitty.nix
@@ -9,12 +9,12 @@ buildPythonPackage rec {
   pname = "HyperKitty";
   # Note: Mailman core must be on the latest version before upgrading HyperKitty.
   # See: https://gitlab.com/mailman/postorius/-/issues/516#note_544571309
-  version = "1.3.3";
+  version = "1.3.4";
   disabled = !isPy3k;
 
   src = fetchPypi {
     inherit pname version;
-    sha256 = "0p85r9q6mn5as5b39xp9hkkipnk0156acx540n2ygk3qb3jd4a5n";
+    sha256 = "1lbh8n66fp3l5s0xvmvsbfvgs3z4knx0gwf0q117n2nfkslf13zp";
   };
 
   nativeBuildInputs = [ isort ];