diff --git a/libs/partners/anthropic/pyproject.toml b/libs/partners/anthropic/pyproject.toml
index 07df5e0f2a4..ee38c683ba3 100644
--- a/libs/partners/anthropic/pyproject.toml
+++ b/libs/partners/anthropic/pyproject.toml
@@ -13,7 +13,7 @@ version = "1.3.1"
 requires-python = ">=3.10.0,<4.0.0"
 dependencies = [
     "anthropic>=0.75.0,<1.0.0",
-    "langchain-core>=1.2.0,<2.0.0",
+    "langchain-core>=1.2.5,<2.0.0",
     "pydantic>=2.7.4,<3.0.0",
 ]