diff --git a/libs/langchain_v1/pyproject.toml b/libs/langchain_v1/pyproject.toml
index d49c5e875e0..3cdae9896db 100644
--- a/libs/langchain_v1/pyproject.toml
+++ b/libs/langchain_v1/pyproject.toml
@@ -7,7 +7,7 @@ authors = []
 license = { text = "MIT" }
 requires-python = ">=3.10"
 dependencies = [
-    "langchain-core<1.0.0,>=0.3.66",
+    "langchain-core<1.0.0,>=0.3.75",
     "langchain-text-splitters<1.0.0,>=0.3.8",
     "langgraph>=0.6.0",
     "pydantic>=2.7.4",