diff --git a/libs/partners/openai/pyproject.toml b/libs/partners/openai/pyproject.toml
index 920139c7558..3a2eb9d1278 100644
--- a/libs/partners/openai/pyproject.toml
+++ b/libs/partners/openai/pyproject.toml
@@ -23,7 +23,7 @@ classifiers = [
 version = "1.1.12"
 requires-python = ">=3.10.0,<4.0.0"
 dependencies = [
-    "langchain-core>=1.2.20,<2.0.0",
+    "langchain-core>=1.2.21,<2.0.0",
     "openai>=2.26.0,<3.0.0",
     "tiktoken>=0.7.0,<1.0.0",
 ]
diff --git a/libs/partners/openai/uv.lock b/libs/partners/openai/uv.lock
index ad34a098a1a..000647735fc 100644
--- a/libs/partners/openai/uv.lock
+++ b/libs/partners/openai/uv.lock
@@ -611,7 +611,7 @@ typing = [
 
 [[package]]
 name = "langchain-core"
-version = "1.2.20"
+version = "1.2.21"
 source = { editable = "../../core" }
 dependencies = [
     { name = "jsonpatch" },