diff --git a/uv.lock b/uv.lock
index d7e2334..f2d50dc 100644
--- a/uv.lock
+++ b/uv.lock
@@ -1026,16 +1026,16 @@ wheels = [
 
 [[package]]
 name = "langchain"
-version = "1.2.7"
+version = "1.2.9"
 source = { registry = "https://pypi.org/simple" }
 dependencies = [
     { name = "langchain-core" },
     { name = "langgraph" },
     { name = "pydantic" },
 ]
-sdist = { url = "https://files.pythonhosted.org/packages/47/f2/478ca9f3455b5d66402066d287eae7e8d6c722acfb8553937e06af708334/langchain-1.2.7.tar.gz", hash = "sha256:ba40e8d5b069a22f7085f54f405973da3d87cfdebf116282e77c692271432ecb", size = 556837, upload-time = "2026-01-23T15:22:10.817Z" }
+sdist = { url = "https://files.pythonhosted.org/packages/ff/d5/e7c8d18bf1ee2d37839dde161d523049fd0a5b172cf4c62f17090e1b4dcb/langchain-1.2.9.tar.gz", hash = "sha256:ae266c640b63c38f16b6d996a50aea575940b29b63cbc652c5d12f0111357f01", size = 569621, upload-time = "2026-02-06T12:39:41.824Z" }
 wheels = [
-    { url = "https://files.pythonhosted.org/packages/dd/c8/9ce37ae34870834c7d00bb14ff4876b700db31b928635e3307804dc41d74/langchain-1.2.7-py3-none-any.whl", hash = "sha256:1d643c8ca569bcde2470b853807f74f0768b3982d25d66d57db21a166aabda72", size = 108827, upload-time = "2026-01-23T15:22:09.771Z" },
+    { url = "https://files.pythonhosted.org/packages/f3/d9/ee07b79f8f1cfd87a6b147879149bdb03c04656e83e5a8c97f38d8915d07/langchain-1.2.9-py3-none-any.whl", hash = "sha256:c1af39d22b7f0415a6f8fa63b37f692335601d3333592c481b899166c55f3fcb", size = 111240, upload-time = "2026-02-06T12:39:39.833Z" },
 ]
 
 [[package]]
@@ -1054,7 +1054,7 @@ wheels = [
 
 [[package]]
 name = "langchain-core"
-version = "1.2.7"
+version = "1.2.9"
 source = { registry = "https://pypi.org/simple" }
 dependencies = [
     { name = "jsonpatch" },
@@ -1066,9 +1066,9 @@ dependencies = [
     { name = "typing-extensions" },
     { name = "uuid-utils" },
 ]
-sdist = { url = "https://files.pythonhosted.org/packages/a2/0e/664d8d81b3493e09cbab72448d2f9d693d1fa5aa2bcc488602203a9b6da0/langchain_core-1.2.7.tar.gz", hash = "sha256:e1460639f96c352b4a41c375f25aeb8d16ffc1769499fb1c20503aad59305ced", size = 837039, upload-time = "2026-01-09T17:44:25.505Z" }
+sdist = { url = "https://files.pythonhosted.org/packages/a6/85/f501592b5d76b27a198f1102bafe365151a0a6f69444122fad6d10e6f4bf/langchain_core-1.2.9.tar.gz", hash = "sha256:a3768febc762307241d153b0f8bc58fd4b70c0ff077fda3274606741fca3f5a7", size = 815900, upload-time = "2026-02-05T14:21:43.942Z" }
 wheels = [
-    { url = "https://files.pythonhosted.org/packages/6e/6f/34a9fba14d191a67f7e2ee3dbce3e9b86d2fa7310e2c7f2c713583481bd2/langchain_core-1.2.7-py3-none-any.whl", hash = "sha256:452f4fef7a3d883357b22600788d37e3d8854ef29da345b7ac7099f33c31828b", size = 490232, upload-time = "2026-01-09T17:44:24.236Z" },
+    { url = "https://files.pythonhosted.org/packages/94/46/77846a98913e444d0d564070a9056bd999daada52bd099dc1e8812272810/langchain_core-1.2.9-py3-none-any.whl", hash = "sha256:7e5ecba5ed7a65852e8d5288e9ceeba05340fa9baf32baf672818b497bbaea8f", size = 496296, upload-time = "2026-02-05T14:21:42.816Z" },
 ]
 
 [[package]]