diff --git a/samples/mcp-integration-with-nova-canvas/uv.lock b/samples/mcp-integration-with-nova-canvas/uv.lock
index e0879e9429..2f57af9efa 100644
--- a/samples/mcp-integration-with-nova-canvas/uv.lock
+++ b/samples/mcp-integration-with-nova-canvas/uv.lock
@@ -615,7 +615,7 @@ wheels = [
 
 [[package]]
 name = "langchain-core"
-version = "1.2.5"
+version = "1.2.28"
 source = { registry = "https://pypi.org/simple" }
 dependencies = [
     { name = "jsonpatch" },
@@ -627,9 +627,9 @@ dependencies = [
     { name = "typing-extensions" },
     { name = "uuid-utils" },
 ]
-sdist = { url = "https://files.pythonhosted.org/packages/c8/86/bd678d69341ae4178bc8dfa04024d63636e5d580ff03d4502c8bc2262917/langchain_core-1.2.5.tar.gz", hash = "sha256:d674f6df42f07e846859b9d3afe547cad333d6bf9763e92c88eb4f8aaedcd3cc", size = 820445, upload-time = "2025-12-22T23:45:32.041Z" }
+sdist = { url = "https://files.pythonhosted.org/packages/f8/a4/317a1a3ac1df33a64adb3670bf88bbe3b3d5baa274db6863a979db472897/langchain_core-1.2.28.tar.gz", hash = "sha256:271a3d8bd618f795fdeba112b0753980457fc90537c46a0c11998516a74dc2cb", size = 846119, upload-time = "2026-04-08T18:19:34.867Z" }
 wheels = [
-    { url = "https://files.pythonhosted.org/packages/83/bd/9df897cbc98290bf71140104ee5b9777cf5291afb80333aa7da5a497339b/langchain_core-1.2.5-py3-none-any.whl", hash = "sha256:3255944ef4e21b2551facb319bfc426057a40247c0a05de5bd6f2fc021fbfa34", size = 484851, upload-time = "2025-12-22T23:45:30.525Z" },
+    { url = "https://files.pythonhosted.org/packages/a8/92/32f785f077c7e898da97064f113c73fbd9ad55d1e2169cf3a391b183dedb/langchain_core-1.2.28-py3-none-any.whl", hash = "sha256:80764232581eaf8057bcefa71dbf8adc1f6a28d257ebd8b95ba9b8b452e8c6ac", size = 508727, upload-time = "2026-04-08T18:19:32.823Z" },
 ]
 
 [[package]]