diff --git a/pkgs/development/python-modules/bellows/default.nix b/pkgs/development/python-modules/bellows/default.nix
index 076bfe9388a8..d5ea3c88bdc2 100644
--- a/pkgs/development/python-modules/bellows/default.nix
+++ b/pkgs/development/python-modules/bellows/default.nix
@@ -15,14 +15,14 @@
 
 buildPythonPackage rec {
   pname = "bellows";
-  version = "0.48.2";
+  version = "0.49.0";
   pyproject = true;
 
   src = fetchFromGitHub {
     owner = "zigpy";
     repo = "bellows";
     tag = version;
-    hash = "sha256-igv/F65oZKYj8hd9KCYlbz6Yf9Ny1lnW4yFs0XT4waQ=";
+    hash = "sha256-haWej3ZcUPd9Rpqf2PH8r0useylnLDaPiSctrwLz71Q=";
   };
 
   postPatch = ''
diff --git a/pkgs/development/python-modules/looptime/default.nix b/pkgs/development/python-modules/looptime/default.nix
new file mode 100644
index 000000000000..6cbe673d6ba6
--- /dev/null
+++ b/pkgs/development/python-modules/looptime/default.nix
@@ -0,0 +1,44 @@
+{
+  async-timeout,
+  buildPythonPackage,
+  fetchFromGitHub,
+  lib,
+  pytest-asyncio,
+  pytestCheckHook,
+  setuptools,
+  setuptools-scm,
+}:
+
+buildPythonPackage (finalAttrs: {
+  pname = "looptime";
+  version = "0.7";
+  pyproject = true;
+
+  src = fetchFromGitHub {
+    owner = "nolar";
+    repo = "looptime";
+    tag = finalAttrs.version;
+    hash = "sha256-nQNGE/o5QNAw4OSs+O5oWiq+JX+ShV6njOHkn1IlvtE=";
+  };
+
+  build-system = [
+    setuptools
+    setuptools-scm
+  ];
+
+  pythonImportsCheck = [ "looptime" ];
+
+  nativeCheckInputs = [
+    async-timeout
+    pytest-asyncio
+    pytestCheckHook
+  ];
+
+  meta = {
+    changelog = "https://github.com/nolar/looptime/releases/tag/${finalAttrs.src.tag}";
+    description = "Time dilation & contraction in asyncio event loops (in tests)";
+    homepage = "https://github.com/nolar/looptime";
+    license = lib.licenses.mit;
+    maintainers = [ lib.maintainers.dotlambda ];
+  };
+})
diff --git a/pkgs/development/python-modules/pyserial-asyncio-fast/default.nix b/pkgs/development/python-modules/pyserial-asyncio-fast/default.nix
index 99940e26d627..f8a1c4c8c780 100644
--- a/pkgs/development/python-modules/pyserial-asyncio-fast/default.nix
+++ b/pkgs/development/python-modules/pyserial-asyncio-fast/default.nix
@@ -2,6 +2,7 @@
   lib,
   buildPythonPackage,
   fetchFromGitHub,
+  pythonAtLeast,
 
   # build-system
   setuptools,
@@ -19,6 +20,9 @@ buildPythonPackage rec {
   version = "0.16";
   pyproject = true;
 
+  # https://github.com/home-assistant-libs/pyserial-asyncio-fast/pull/37
+  disabled = pythonAtLeast "3.14";
+
   src = fetchFromGitHub {
     owner = "bdraco";
     repo = "pyserial-asyncio-fast";
diff --git a/pkgs/development/python-modules/zha-quirks/default.nix b/pkgs/development/python-modules/zha-quirks/default.nix
index 85bd1b89ebe1..87e8dd36d8d3 100644
--- a/pkgs/development/python-modules/zha-quirks/default.nix
+++ b/pkgs/development/python-modules/zha-quirks/default.nix
@@ -13,7 +13,7 @@
 
 buildPythonPackage rec {
   pname = "zha-quirks";
-  version = "0.0.150";
+  version = "0.0.151";
   pyproject = true;
 
   disabled = pythonOlder "3.12";
@@ -22,7 +22,7 @@ buildPythonPackage rec {
     owner = "zigpy";
     repo = "zha-device-handlers";
     tag = version;
-    hash = "sha256-kdbmg4SGMl3RYdPFLJhbUxfdMokQ/LrhG6hTlu8eujo=";
+    hash = "sha256-eB4Xmkbueig9UgGs0d9WLGFLQ20XiCdFtI4KKa8frJw=";
   };
 
   postPatch = ''
diff --git a/pkgs/development/python-modules/zha/default.nix b/pkgs/development/python-modules/zha/default.nix
index 845e02c55a04..bc3b4de08497 100644
--- a/pkgs/development/python-modules/zha/default.nix
+++ b/pkgs/development/python-modules/zha/default.nix
@@ -4,6 +4,7 @@
   buildPythonPackage,
   fetchFromGitHub,
   freezegun,
+  looptime,
   pyserial,
   pyserial-asyncio-fast,
   pytest-asyncio_0,
@@ -22,7 +23,7 @@
 
 buildPythonPackage rec {
   pname = "zha";
-  version = "0.0.81";
+  version = "0.0.83";
   pyproject = true;
 
   disabled = pythonOlder "3.12";
@@ -31,7 +32,7 @@ buildPythonPackage rec {
     owner = "zigpy";
     repo = "zha";
     tag = version;
-    hash = "sha256-MsuCzb2jIjZh24tXUz0fE9MgstuvmUOIWEC0s1jRoow=";
+    hash = "sha256-/poB5dkD5bta/GWOah6+bz+w++C1NWf649TUzqvDfU0=";
   };
 
   postPatch = ''
@@ -58,6 +59,7 @@ buildPythonPackage rec {
 
   nativeCheckInputs = [
     freezegun
+    looptime
     pytest-asyncio_0
     pytest-timeout
     pytest-xdist
diff --git a/pkgs/development/python-modules/zigpy/default.nix b/pkgs/development/python-modules/zigpy/default.nix
index b6975018854a..d8c427ed4cda 100644
--- a/pkgs/development/python-modules/zigpy/default.nix
+++ b/pkgs/development/python-modules/zigpy/default.nix
@@ -10,6 +10,7 @@
   crccheck,
   cryptography,
   fetchFromGitHub,
+  filelock,
   freezegun,
   frozendict,
   jsonschema,
@@ -25,14 +26,14 @@
 
 buildPythonPackage rec {
   pname = "zigpy";
-  version = "0.88.0";
+  version = "0.90.0";
   pyproject = true;
 
   src = fetchFromGitHub {
     owner = "zigpy";
     repo = "zigpy";
     tag = version;
-    hash = "sha256-jYhanzekQIIBSqoB/8sToKOhAS/Cicx5OJ83XxWTp7E=";
+    hash = "sha256-HTQ9azIXnNkNM+s7w0oerDf9+RcCO8DF9+kL9Uzevyk=";
   };
 
   postPatch = ''
@@ -59,6 +60,7 @@ buildPythonPackage rec {
 
   nativeCheckInputs = [
     aioresponses
+    filelock
     freezegun
     pytest-asyncio_0
     pytest-timeout
@@ -68,13 +70,11 @@ buildPythonPackage rec {
   disabledTests = [
     # assert quirked.quirk_metadata.quirk_location.endswith("zigpy/tests/test_quirks_v2.py]-line:104") is False
     "test_quirks_v2"
-  ]
-  ++ lib.optionals (stdenv.hostPlatform.isLinux && stdenv.hostPlatform.isx86_64) [
-    "test_periodic_scan_priority"
   ];
 
   disabledTestPaths = [
     # Tests require network access
+    "tests/ota/test_ota_image.py"
     "tests/ota/test_ota_providers.py"
     # All tests fail to shutdown thread during teardown
     "tests/ota/test_ota_matching.py"
diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index 9be3343e7e7f..ad35132d2799 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -9100,6 +9100,8 @@ self: super: with self; {
 
   loompy = callPackage ../development/python-modules/loompy { };
 
+  looptime = callPackage ../development/python-modules/looptime { };
+
   loopy = callPackage ../development/python-modules/loopy { };
 
   looseversion = callPackage ../development/python-modules/looseversion { };