diff --git a/libs/core/langchain_core/version.py b/libs/core/langchain_core/version.py
index 9f91387af4f..0ef13d48d55 100644
--- a/libs/core/langchain_core/version.py
+++ b/libs/core/langchain_core/version.py
@@ -1,3 +1,3 @@
 """langchain-core version information and utilities."""
 
-VERSION = "1.2.2"
+VERSION = "1.2.3"
diff --git a/libs/core/pyproject.toml b/libs/core/pyproject.toml
index 65f84c7ac16..a70a86d6b15 100644
--- a/libs/core/pyproject.toml
+++ b/libs/core/pyproject.toml
@@ -9,7 +9,7 @@ license = {text = "MIT"}
 readme = "README.md"
 authors = []
 
-version = "1.2.2"
+version = "1.2.3"
 requires-python = ">=3.10.0,<4.0.0"
 dependencies = [
     "langsmith>=0.3.45,<1.0.0",
diff --git a/libs/core/uv.lock b/libs/core/uv.lock
index 4674b961cc4..e847d6db668 100644
--- a/libs/core/uv.lock
+++ b/libs/core/uv.lock
@@ -1,5 +1,5 @@
 version = 1
-revision = 3
+revision = 2
 requires-python = ">=3.10.0, <4.0.0"
 resolution-markers = [
     "python_full_version >= '3.14' and platform_python_implementation == 'PyPy'",
@@ -983,7 +983,7 @@ wheels = [
 
 [[package]]
 name = "langchain-core"
-version = "1.2.2"
+version = "1.2.3"
 source = { editable = "." }
 dependencies = [
     { name = "jsonpatch" },
diff --git a/libs/langchain/uv.lock b/libs/langchain/uv.lock
index 04f938ee20d..139c9fdf2d0 100644
--- a/libs/langchain/uv.lock
+++ b/libs/langchain/uv.lock
@@ -2458,7 +2458,7 @@ typing = [
 
 [[package]]
 name = "langchain-core"
-version = "1.2.2"
+version = "1.2.3"
 source = { editable = "../core" }
 dependencies = [
     { name = "jsonpatch" },
diff --git a/libs/langchain_v1/uv.lock b/libs/langchain_v1/uv.lock
index d65a13a1c44..62517408735 100644
--- a/libs/langchain_v1/uv.lock
+++ b/libs/langchain_v1/uv.lock
@@ -2102,7 +2102,7 @@ wheels = [
 
 [[package]]
 name = "langchain-core"
-version = "1.2.2"
+version = "1.2.3"
 source = { editable = "../core" }
 dependencies = [
     { name = "jsonpatch" },
diff --git a/libs/model-profiles/uv.lock b/libs/model-profiles/uv.lock
index 6a6865f17ac..680b225a22b 100644
--- a/libs/model-profiles/uv.lock
+++ b/libs/model-profiles/uv.lock
@@ -526,7 +526,7 @@ typing = [
 
 [[package]]
 name = "langchain-core"
-version = "1.2.2"
+version = "1.2.3"
 source = { editable = "../core" }
 dependencies = [
     { name = "jsonpatch" },
diff --git a/libs/text-splitters/uv.lock b/libs/text-splitters/uv.lock
index 4dcd28eb39d..3e26b1df87e 100644
--- a/libs/text-splitters/uv.lock
+++ b/libs/text-splitters/uv.lock
@@ -1,5 +1,5 @@
 version = 1
-revision = 3
+revision = 2
 requires-python = ">=3.10.0, <4.0.0"
 resolution-markers = [
     "python_full_version >= '3.14'",
@@ -1123,7 +1123,7 @@ wheels = [
 
 [[package]]
 name = "langchain-core"
-version = "1.2.2"
+version = "1.2.3"
 source = { editable = "../core" }
 dependencies = [
     { name = "jsonpatch" },