diff --git a/pctx-py/uv.lock b/pctx-py/uv.lock
index cfc511a..708e8e1 100644
--- a/pctx-py/uv.lock
+++ b/pctx-py/uv.lock
@@ -2176,7 +2176,7 @@ wheels = [
 
 [[package]]
 name = "langsmith"
-version = "0.7.1"
+version = "0.8.18"
 source = { registry = "https://pypi.org/simple" }
 dependencies = [
     { name = "httpx" },
@@ -2186,12 +2186,13 @@ dependencies = [
     { name = "requests" },
     { name = "requests-toolbelt" },
     { name = "uuid-utils" },
+    { name = "websockets" },
     { name = "xxhash" },
     { name = "zstandard" },
 ]
-sdist = { url = "https://files.pythonhosted.org/packages/67/48/3151de6df96e0977b8d319b03905e29db0df6929a85df1d922a030b7e68d/langsmith-0.7.1.tar.gz", hash = "sha256:e3fec2f97f7c5192f192f4873d6a076b8c6469768022323dded07087d8cb70a4", size = 984367, upload-time = "2026-02-10T01:55:24.696Z" }
+sdist = { url = "https://files.pythonhosted.org/packages/9a/d9/a6681aa9847bbbc5ec21abe20a5e233b94e5edcfe39624db607ac7e8ccb4/langsmith-0.8.18.tar.gz", hash = "sha256:32dde9c0e67e053e0fb738921fc8ced768af7b8fa83d7a0e3fd63597cf8776dd", size = 4526988, upload-time = "2026-06-19T13:12:17.123Z" }
 wheels = [
-    { url = "https://files.pythonhosted.org/packages/ce/87/6f2b008a456b4f5fd0fb1509bb7e1e9368c1a0c9641a535f224a9ddc10f3/langsmith-0.7.1-py3-none-any.whl", hash = "sha256:92cfa54253d35417184c297ad25bfd921d95f15d60a1ca75f14d4e7acd152a29", size = 322515, upload-time = "2026-02-10T01:55:22.531Z" },
+    { url = "https://files.pythonhosted.org/packages/03/70/0e0cc80a3b064c8d6c8d697c3125ed86e39d5a7393ec6dc8b07cb1cf13c4/langsmith-0.8.18-py3-none-any.whl", hash = "sha256:3940183349993faef48e6c7d08e4822ee9cefd906b362d0e3c2d650314d2f282", size = 508108, upload-time = "2026-06-19T13:12:15.348Z" },
 ]
 
 [[package]]