diff --git a/pkgs/development/python-modules/langchain-core/default.nix b/pkgs/development/python-modules/langchain-core/default.nix
index bbc3a7adc576..8e32b2f3f6d7 100644
--- a/pkgs/development/python-modules/langchain-core/default.nix
+++ b/pkgs/development/python-modules/langchain-core/default.nix
@@ -86,7 +86,11 @@ buildPythonPackage rec {
     '';
   };
 
-  disabledTests = lib.optionals stdenv.isDarwin [
+  disabledTests = [
+    # flaky, sometimes fail to strip uuid from AIMessageChunk before comparing to test value
+    "test_map_stream"
+  ]
+  ++ lib.optionals stdenv.isDarwin [
     # Langchain-core the following tests due to the test comparing execution time with magic values.
     "test_queue_for_streaming_via_sync_call"
     "test_same_event_loop"