diff --git a/libs/langchain/pyproject.toml b/libs/langchain/pyproject.toml
index 07fb5630a50..834eda2e860 100644
--- a/libs/langchain/pyproject.toml
+++ b/libs/langchain/pyproject.toml
@@ -7,7 +7,7 @@ authors = []
 license = { text = "MIT" }
 requires-python = "<4.0,>=3.9"
 dependencies = [
-    "langchain-core<1.0.0,>=0.3.41",
+    "langchain-core<1.0.0,>=0.3.45",
     "langchain-text-splitters<1.0.0,>=0.3.6",
     "langsmith<0.4,>=0.1.17",
     "pydantic<3.0.0,>=2.7.4",
@@ -17,7 +17,7 @@ dependencies = [
     "async-timeout<5.0.0,>=4.0.0; python_version < \"3.11\"",
 ]
 name = "langchain"
-version = "0.3.20"
+version = "0.3.21"
 description = "Building applications with LLMs through composability"
 readme = "README.md"
 
diff --git a/libs/langchain/uv.lock b/libs/langchain/uv.lock
index 5c24556af34..e2fd297338c 100644
--- a/libs/langchain/uv.lock
+++ b/libs/langchain/uv.lock
@@ -2344,7 +2344,7 @@ wheels = [
 
 [[package]]
 name = "langchain"
-version = "0.3.20"
+version = "0.3.21"
 source = { editable = "." }
 dependencies = [
     { name = "async-timeout", marker = "python_full_version < '3.11'" },