diff --git a/pkgs/development/python-modules/oslo-concurrency/default.nix b/pkgs/development/python-modules/oslo-concurrency/default.nix
index e9244c7bc843..d36546dde389 100644
--- a/pkgs/development/python-modules/oslo-concurrency/default.nix
+++ b/pkgs/development/python-modules/oslo-concurrency/default.nix
@@ -15,9 +15,11 @@
   oslo-utils,
   oslotest,
   pbr,
+  pythonAtLeast,
   setuptools,
   stdenv,
   stestr,
+  writeText,
 }:
 
 buildPythonPackage rec {
@@ -64,22 +66,36 @@ buildPythonPackage rec {
     stestr
   ];
 
-  checkPhase = ''
-    echo "nameserver 127.0.0.1" > resolv.conf
-    export NIX_REDIRECTS=/etc/protocols=${iana-etc}/etc/protocols:/etc/resolv.conf=$(realpath resolv.conf)
+  checkPhase =
+    let
+      disabledTests = [
+        "oslo_concurrency.tests.unit.test_lockutils_eventlet.TestInternalLock.test_fair_lock_with_spawn"
+        "oslo_concurrency.tests.unit.test_lockutils_eventlet.TestInternalLock.test_fair_lock_with_spawn_n"
+        "oslo_concurrency.tests.unit.test_lockutils_eventlet.TestInternalLock.test_lock_with_spawn"
+        "oslo_concurrency.tests.unit.test_lockutils_eventlet.TestInternalLock.test_lock_with_spawn_n"
+      ]
+      ++ lib.optionals stdenv.hostPlatform.isDarwin [
+        "oslo_concurrency.tests.unit.test_lockutils.FileBasedLockingTestCase.test_interprocess_nonblocking_external_lock"
+        "oslo_concurrency.tests.unit.test_lockutils.LockTestCase.test_lock_externally"
+        "oslo_concurrency.tests.unit.test_lockutils.LockTestCase.test_lock_externally_lock_dir_not_exist"
+        "oslo_concurrency.tests.unit.test_processutils.PrlimitTestCase.test_stack_size"
+      ]
+      ++ lib.optionals (pythonAtLeast "3.14") [
+        # Disable test incompatible with Python 3.14+
+        # See proposed change upstream: https://review.opendev.org/c/openstack/oslo.concurrency/+/971765
+        "oslo_concurrency.tests.unit.test_lockutils"
+      ];
+    in
+    ''
+      runHook preCheck
 
-    stestr run -e <(echo "
-    oslo_concurrency.tests.unit.test_lockutils_eventlet.TestInternalLock.test_fair_lock_with_spawn
-    oslo_concurrency.tests.unit.test_lockutils_eventlet.TestInternalLock.test_fair_lock_with_spawn_n
-    oslo_concurrency.tests.unit.test_lockutils_eventlet.TestInternalLock.test_lock_with_spawn
-    oslo_concurrency.tests.unit.test_lockutils_eventlet.TestInternalLock.test_lock_with_spawn_n
-    ${lib.optionalString stdenv.hostPlatform.isDarwin ''
-      oslo_concurrency.tests.unit.test_lockutils.FileBasedLockingTestCase.test_interprocess_nonblocking_external_lock
-      oslo_concurrency.tests.unit.test_lockutils.LockTestCase.test_lock_externally
-      oslo_concurrency.tests.unit.test_lockutils.LockTestCase.test_lock_externally_lock_dir_not_exist
-      oslo_concurrency.tests.unit.test_processutils.PrlimitTestCase.test_stack_size
-    ''}")
-  '';
+      echo "nameserver 127.0.0.1" > resolv.conf
+      export NIX_REDIRECTS=/etc/protocols=${iana-etc}/etc/protocols:/etc/resolv.conf=$(realpath resolv.conf)
+
+      stestr run -e <(echo "${lib.concatStringsSep "\n" disabledTests}")
+
+      runHook postCheck
+    '';
 
   pythonImportsCheck = [ "oslo_concurrency" ];