diff --git a/libs/partners/anthropic/pyproject.toml b/libs/partners/anthropic/pyproject.toml
index ac019408003..e2ca9ca0904 100644
--- a/libs/partners/anthropic/pyproject.toml
+++ b/libs/partners/anthropic/pyproject.toml
@@ -12,7 +12,7 @@ dependencies = [
     "pydantic>=2.7.4,<3.0.0",
 ]
 name = "langchain-anthropic"
-version = "1.0.0a4"
+version = "1.0.0a5"
 description = "Integration package connecting Claude (Anthropic) APIs and LangChain"
 readme = "README.md"
 
diff --git a/libs/partners/anthropic/uv.lock b/libs/partners/anthropic/uv.lock
index baf527916b7..6d033867120 100644
--- a/libs/partners/anthropic/uv.lock
+++ b/libs/partners/anthropic/uv.lock
@@ -453,7 +453,7 @@ wheels = [
 
 [[package]]
 name = "langchain"
-version = "1.0.0a14"
+version = "1.0.0a15"
 source = { editable = "../../langchain_v1" }
 dependencies = [
     { name = "langchain-core" },
@@ -514,7 +514,7 @@ typing = [
 
 [[package]]
 name = "langchain-anthropic"
-version = "1.0.0a4"
+version = "1.0.0a5"
 source = { editable = "." }
 dependencies = [
     { name = "anthropic" },