diff --git a/libs/langchain_v1/uv.lock b/libs/langchain_v1/uv.lock
index d070f2113cd..d3b5caa9334 100644
--- a/libs/langchain_v1/uv.lock
+++ b/libs/langchain_v1/uv.lock
@@ -2703,7 +2703,7 @@ wheels = [
 
 [[package]]
 name = "langsmith"
-version = "0.8.9"
+version = "0.8.18"
 source = { registry = "https://pypi.org/simple" }
 dependencies = [
     { name = "httpx" },
@@ -2717,9 +2717,9 @@ dependencies = [
     { name = "xxhash" },
     { name = "zstandard" },
 ]
-sdist = { url = "https://files.pythonhosted.org/packages/e4/dd/f4c8a12987318e505b10760d30c3c2d45e8dc87ba8f47a004c753a9e7b35/langsmith-0.8.9.tar.gz", hash = "sha256:f16e37fcd5a8a2d4db30eae0e399a866a65ce5cc86218825c59409ed57a3bf53", size = 4428684, upload-time = "2026-06-03T17:56:09.448Z" }
+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/b5/2f/a701663c9fb4d9630448622a684bc372b4905b9a6dbe2297d55a70fde04e/langsmith-0.8.9-py3-none-any.whl", hash = "sha256:c9519cabc75568d088df045710d1b86eae9780c91054528b2aa7e6cb1fc80c52", size = 403165, upload-time = "2026-06-03T17:56:07.226Z" },
+    { 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]]