diff --git a/pkgs/development/python-modules/fastmcp/default.nix b/pkgs/development/python-modules/fastmcp/default.nix
index 996f00ccc253..b37187a8c73c 100644
--- a/pkgs/development/python-modules/fastmcp/default.nix
+++ b/pkgs/development/python-modules/fastmcp/default.nix
@@ -168,6 +168,9 @@ buildPythonPackage (finalAttrs: {
   ++ lib.optionals stdenv.hostPlatform.isDarwin [
     # RuntimeError: Server failed to start after 10 attempts
     "test_unauthorized_access"
+
+    # Failed: DID NOT RAISE <class 'fastmcp.exceptions.ToolError'>
+    "test_stateless_proxy"
   ];
 
   disabledTestPaths = lib.optionals stdenv.hostPlatform.isDarwin [