diff --git a/pkgs/development/python-modules/curl-cffi/default.nix b/pkgs/development/python-modules/curl-cffi/default.nix
index ac1eb455aa11..310fd84f70ad 100644
--- a/pkgs/development/python-modules/curl-cffi/default.nix
+++ b/pkgs/development/python-modules/curl-cffi/default.nix
@@ -1,5 +1,4 @@
 {
-  stdenv,
   lib,
   buildPythonPackage,
   fetchFromGitHub,
@@ -19,10 +18,30 @@
   python-multipart,
   trustme,
   uvicorn,
-  websockets,
   writableTmpDirAsHomeHook,
 }:
+let
+  # This is only used for testing and requires 12.0 specifically
+  # due to incompatible API changes in later versions.
+  websockets = buildPythonPackage rec {
+    pname = "websockets";
+    version = "12.0";
+    pyproject = true;
 
+    src = fetchFromGitHub {
+      owner = "aaugustin";
+      repo = "websockets";
+      tag = version;
+      hash = "sha256-sOL3VI9Ib/PncZs5KN4dAIHOrBc7LfXqT15LO4M6qKg=";
+    };
+
+    build-system = [ setuptools ];
+
+    doCheck = false;
+
+    pythonImportsCheck = [ "websockets" ];
+  };
+in
 buildPythonPackage rec {
   pname = "curl-cffi";
   version = "0.14.0b2";
@@ -36,6 +55,7 @@ buildPythonPackage rec {
   };
 
   patches = [ ./use-system-libs.patch ];
+
   buildInputs = [ curl-impersonate-chrome ];
 
   build-system = [
@@ -79,8 +99,11 @@ buildPythonPackage rec {
   disabledTestPaths = [
     # test accesses network
     "tests/unittest/test_smoke.py::test_async"
+    # Hangs the build (possibly forever) under websockets > 12
+    # https://github.com/lexiforest/curl_cffi/issues/657
+    "tests/unittest/test_websockets.py::test_websocket"
     # Runs out of memory while testing
-    "tests/unittest/test_websockets.py"
+    "tests/unittest/test_websockets.py::test_receive_large_messages_run_forever"
   ];
 
   disabledTests = [
@@ -102,6 +125,9 @@ buildPythonPackage rec {
     description = "Python binding for curl-impersonate via cffi";
     homepage = "https://curl-cffi.readthedocs.io";
     license = lib.licenses.mit;
-    maintainers = with lib.maintainers; [ chuangzhu ];
+    maintainers = with lib.maintainers; [
+      chuangzhu
+      sarahec
+    ];
   };
 }