diff --git a/libs/langgraph/pyproject.toml b/libs/langgraph/pyproject.toml
index 8d23f4418..5bbe8769f 100644
--- a/libs/langgraph/pyproject.toml
+++ b/libs/langgraph/pyproject.toml
@@ -81,6 +81,7 @@ dev = [
 
 
 [tool.uv.sources]
+langchain-core = { git = "https://github.com/langchain-ai/langchain.git", branch = "nh/streaming-for-alpha-release", subdirectory = "libs/core" }
 langgraph-prebuilt = { path = "../prebuilt", editable = true }
 langgraph-checkpoint = { path = "../checkpoint", editable = true }
 langgraph-checkpoint-sqlite = { path = "../checkpoint-sqlite", editable = true }
diff --git a/libs/langgraph/uv.lock b/libs/langgraph/uv.lock
index 054878b42..391c64d93 100644
--- a/libs/langgraph/uv.lock
+++ b/libs/langgraph/uv.lock
@@ -1349,7 +1349,7 @@ wheels = [
 [[package]]
 name = "langchain-core"
 version = "1.3.2"
-source = { registry = "https://pypi.org/simple" }
+source = { git = "https://github.com/langchain-ai/langchain.git?subdirectory=libs%2Fcore&branch=nh%2Fstreaming-for-alpha-release#ad4d43f38827e2aadce559e7e676b5eb4184a976" }
 dependencies = [
     { name = "jsonpatch" },
     { name = "langchain-protocol" },
@@ -1361,21 +1361,17 @@ dependencies = [
     { name = "typing-extensions" },
     { name = "uuid-utils" },
 ]
-sdist = { url = "https://files.pythonhosted.org/packages/a8/03/7219502e8ca728d65eb44d7a3eb60239230742a70dbfc9241b9bfd61c4ab/langchain_core-1.3.2.tar.gz", hash = "sha256:fd7a50b2f28ba561fd9d7f5d2760bc9e06cf00cdf820a3ccafe88a94ffa8d5b7", size = 911813, upload-time = "2026-04-24T15:49:23.699Z" }
-wheels = [
-    { url = "https://files.pythonhosted.org/packages/7d/d5/8fa4431007cbb7cfed7590f4d6a5dea3ad724f4174d248f6642ef5ce7d05/langchain_core-1.3.2-py3-none-any.whl", hash = "sha256:d44a66127f9f8db735bdfd0ab9661bccb47a97113cfd3f2d89c74864422b7274", size = 542390, upload-time = "2026-04-24T15:49:21.991Z" },
-]
 
 [[package]]
 name = "langchain-protocol"
-version = "0.0.12"
+version = "0.0.14"
 source = { registry = "https://pypi.org/simple" }
 dependencies = [
     { name = "typing-extensions" },
 ]
-sdist = { url = "https://files.pythonhosted.org/packages/5c/51/1157009b6f94e6e58be58fa8b620187d657909a8b36a6bf5b0c52a2711f6/langchain_protocol-0.0.12.tar.gz", hash = "sha256:5e14c434290a705c9510fdb1a83ecf7561a5e6e0dfd053930ade80dba069269f", size = 6408, upload-time = "2026-04-25T01:05:01.489Z" }
+sdist = { url = "https://files.pythonhosted.org/packages/05/bf/efb5e2ed832e4d6d45590e25a9e5191986b291b543bc6a807b48bee070b0/langchain_protocol-0.0.14.tar.gz", hash = "sha256:bc1e8553122e6ede310280462d5813023a172ff2785ccbbdec54d43f3a15e5f2", size = 5862, upload-time = "2026-04-29T16:40:18.657Z" }
 wheels = [
-    { url = "https://files.pythonhosted.org/packages/95/82/3431e3061c917439589fa88a6b23c9bc0e154cba0f05d2e895a68c76ff74/langchain_protocol-0.0.12-py3-none-any.whl", hash = "sha256:402b61f42d4139692528cf37226c367bb6efc8ff8165b29380accb0abfece7b2", size = 6639, upload-time = "2026-04-25T01:05:00.487Z" },
+    { url = "https://files.pythonhosted.org/packages/c2/e9/06c47ecb2aff08f83dfa30058da3bf86be64862c19569043ed5331bbeecd/langchain_protocol-0.0.14-py3-none-any.whl", hash = "sha256:ffc35089779bd8ca217015180cef5e660fc3b074efdaa0f2e95df73583f1a047", size = 6984, upload-time = "2026-04-29T16:40:17.841Z" },
 ]
 
 [[package]]
@@ -1452,7 +1448,7 @@ test = [
 
 [package.metadata]
 requires-dist = [
-    { name = "langchain-core", specifier = ">=1.3.2,<2" },
+    { name = "langchain-core", git = "https://github.com/langchain-ai/langchain.git?subdirectory=libs%2Fcore&branch=nh%2Fstreaming-for-alpha-release" },
     { name = "langgraph-checkpoint", editable = "../checkpoint" },
     { name = "langgraph-prebuilt", editable = "../prebuilt" },
     { name = "langgraph-sdk", editable = "../sdk-py" },
@@ -1464,7 +1460,7 @@ requires-dist = [
 dev = [
     { name = "httpx" },
     { name = "jupyter" },
-    { name = "langchain-core", specifier = ">=1.0.0" },
+    { name = "langchain-core", git = "https://github.com/langchain-ai/langchain.git?subdirectory=libs%2Fcore&branch=nh%2Fstreaming-for-alpha-release" },
     { name = "langgraph-checkpoint", editable = "../checkpoint" },
     { name = "langgraph-checkpoint-postgres", editable = "../checkpoint-postgres" },
     { name = "langgraph-checkpoint-sqlite", editable = "../checkpoint-sqlite" },
@@ -1497,7 +1493,7 @@ lint = [
 ]
 test = [
     { name = "httpx" },
-    { name = "langchain-core", specifier = ">=1.0.0" },
+    { name = "langchain-core", git = "https://github.com/langchain-ai/langchain.git?subdirectory=libs%2Fcore&branch=nh%2Fstreaming-for-alpha-release" },
     { name = "langgraph-checkpoint", editable = "../checkpoint" },
     { name = "langgraph-checkpoint-postgres", editable = "../checkpoint-postgres" },
     { name = "langgraph-checkpoint-sqlite", editable = "../checkpoint-sqlite" },