diff --git a/pyproject.toml b/pyproject.toml
index 6747880..34c76d7 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -14,7 +14,7 @@ readme = "README.md"
 requires-python = ">=3.10,<4.0"
 version = "0.2.1"
 
-dependencies = ["langchain-core>=1.2.22", "linkup-sdk>=0.11.0"]
+dependencies = ["langchain-core>=1.3.3", "linkup-sdk>=0.11.0"]
 
 [project.optional-dependencies]
 build = ["uv>=0.10.0,<0.11.0"] # For python-semantic-release build command, used in GitHub actions
diff --git a/uv.lock b/uv.lock
index 6d39a46..630bd03 100644
--- a/uv.lock
+++ b/uv.lock
@@ -8,7 +8,7 @@ resolution-markers = [
 ]
 
 [options]
-exclude-newer = "2026-03-25T17:54:20.608661052Z"
+exclude-newer = "2026-05-06T15:42:22.559464Z"
 exclude-newer-span = "P5D"
 
 [[package]]
@@ -546,10 +546,11 @@ wheels = [
 
 [[package]]
 name = "langchain-core"
-version = "1.2.22"
+version = "1.3.3"
 source = { registry = "https://pypi.org/simple" }
 dependencies = [
     { name = "jsonpatch" },
+    { name = "langchain-protocol" },
     { name = "langsmith" },
     { name = "packaging" },
     { name = "pydantic" },
@@ -558,9 +559,9 @@ dependencies = [
     { name = "typing-extensions" },
     { name = "uuid-utils" },
 ]
-sdist = { url = "https://files.pythonhosted.org/packages/b1/a3/c4cd6827a1df46c821e7214b7f7b7a28b189e6c9b84ef15c6d629c5e3179/langchain_core-1.2.22.tar.gz", hash = "sha256:8d8f726d03d3652d403da915126626bb6250747e8ba406537d849e68b9f5d058", size = 842487, upload-time = "2026-03-24T18:48:44.9Z" }
+sdist = { url = "https://files.pythonhosted.org/packages/d3/ae/8b74458fc3850ec3d150eb9f45e857db129dafa801fb5cf173dfc9f8bbf3/langchain_core-1.3.3.tar.gz", hash = "sha256:fa510a5db8efdc0c6ff41c0939fb5c00a0183c11f6b84233e892e3227ff69182", size = 915041, upload-time = "2026-05-05T19:02:36.612Z" }
 wheels = [
-    { url = "https://files.pythonhosted.org/packages/c7/a6/2ffacf0f1a3788f250e75d0b52a24896c413be11be3a6d42bcdf46fbea48/langchain_core-1.2.22-py3-none-any.whl", hash = "sha256:7e30d586b75918e828833b9ec1efc25465723566845dd652c277baf751e9c04b", size = 506829, upload-time = "2026-03-24T18:48:43.286Z" },
+    { url = "https://files.pythonhosted.org/packages/1f/01/4771b7ab2af1d1aba5b710bd8f13d9225c609425214b357590a17b01be77/langchain_core-1.3.3-py3-none-any.whl", hash = "sha256:18aae8506f37da7f74398492279a7d6efcee4f8e23c4c41c7af080eeb7ef7bd1", size = 543857, upload-time = "2026-05-05T19:02:34.52Z" },
 ]
 
 [[package]]
@@ -596,7 +597,7 @@ dev = [
 
 [package.metadata]
 requires-dist = [
-    { name = "langchain-core", specifier = ">=1.2.22" },
+    { name = "langchain-core", specifier = ">=1.3.3" },
     { name = "linkup-sdk", specifier = ">=0.11.0" },
     { name = "uv", marker = "extra == 'build'", specifier = ">=0.10.0,<0.11.0" },
 ]
@@ -633,6 +634,18 @@ wheels = [
     { url = "https://files.pythonhosted.org/packages/72/17/3785cbcdc81c451179247e4176d2697879cb4f45ab2c59d949ca574e072d/langchain_openai-1.1.10-py3-none-any.whl", hash = "sha256:d91b2c09e9fbc70f7af45345d3aa477744962d41c73a029beb46b4f83b824827", size = 87205, upload-time = "2026-02-17T18:03:43.502Z" },
 ]
 
+[[package]]
+name = "langchain-protocol"
+version = "0.0.15"
+source = { registry = "https://pypi.org/simple" }
+dependencies = [
+    { name = "typing-extensions" },
+]
+sdist = { url = "https://files.pythonhosted.org/packages/4f/24/9777489d6fbbee64af0c8f96d4f840239c408cf694f3394672807dafc490/langchain_protocol-0.0.15.tar.gz", hash = "sha256:9ab2d11ee73944754f10e037e717098d3a6796f0e58afa9cadda6154e7655ade", size = 5862, upload-time = "2026-05-01T22:30:04.748Z" }
+wheels = [
+    { url = "https://files.pythonhosted.org/packages/1d/7a/9c97a7b9cbe4c5dc6a44cdb1545450c28f0c8ce89b9c1f0ee7fbad896263/langchain_protocol-0.0.15-py3-none-any.whl", hash = "sha256:461eb794358f83d5e42635a5797799ffec7b4702314e34edf73ac21e75d3ef79", size = 6982, upload-time = "2026-05-01T22:30:03.877Z" },
+]
+
 [[package]]
 name = "langchain-tests"
 version = "1.1.5"