diff --git a/pkgs/development/python-modules/aioopenssl/default.nix b/pkgs/development/python-modules/aioopenssl/default.nix
index b69ba513263f..cb6336de2438 100644
--- a/pkgs/development/python-modules/aioopenssl/default.nix
+++ b/pkgs/development/python-modules/aioopenssl/default.nix
@@ -3,6 +3,7 @@
   stdenv,
   buildPythonPackage,
   fetchFromGitHub,
+  fetchpatch,
 
   # build-system
   setuptools,
@@ -34,6 +35,15 @@ buildPythonPackage rec {
 
   nativeCheckInputs = [ pytestCheckHook ];
 
+  patches = [
+    # compatibility with python3.14: set a asyncio event loop for the unit tetsts
+    (fetchpatch {
+      name = "fix-asyncio-event-loop.patch";
+      url = "https://github.com/theobori/aioopenssl/commit/47b1a1e5593fd8c3f4dedcdbc68c17e83d5c88ec.patch";
+      hash = "sha256-XdoeWS5wqmGDWRObVpjcRLyN7SF2IdVmSAUBD7U4dfI=";
+    })
+  ];
+
   # Tests that fail in when built in the Darwin sandbox.
   disabledTests = lib.optionals stdenv.hostPlatform.isDarwin [
     # address already in use