diff --git a/python/packages/a2a/pyproject.toml b/python/packages/a2a/pyproject.toml
index f13ca4f145..92bfaf4944 100644
--- a/python/packages/a2a/pyproject.toml
+++ b/python/packages/a2a/pyproject.toml
@@ -4,7 +4,7 @@ description = "A2A integration for Microsoft Agent Framework."
 authors = [{ name = "Microsoft", email = "af-support@microsoft.com"}]
 readme = "README.md"
 requires-python = ">=3.10"
-version = "1.0.0-b251001"
+version = "1.0.0b251001"
 license-files = ["LICENSE"]
 urls.homepage = "https://learn.microsoft.com/en-us/semantic-kernel/overview/"
 urls.source = "https://github.com/microsoft/agent-framework/tree/main/python"
diff --git a/python/packages/azure-ai/pyproject.toml b/python/packages/azure-ai/pyproject.toml
index 5e58897616..4444a1360b 100644
--- a/python/packages/azure-ai/pyproject.toml
+++ b/python/packages/azure-ai/pyproject.toml
@@ -4,7 +4,7 @@ description = "Azure AI Foundry integration for Microsoft Agent Framework."
 authors = [{ name = "Microsoft", email = "af-support@microsoft.com"}]
 readme = "README.md"
 requires-python = ">=3.10"
-version = "1.0.0-b251001"
+version = "1.0.0b251001"
 license-files = ["LICENSE"]
 urls.homepage = "https://learn.microsoft.com/en-us/semantic-kernel/overview/"
 urls.source = "https://github.com/microsoft/agent-framework/tree/main/python"
diff --git a/python/packages/copilotstudio/pyproject.toml b/python/packages/copilotstudio/pyproject.toml
index 47eea69ba9..1c11b3a580 100644
--- a/python/packages/copilotstudio/pyproject.toml
+++ b/python/packages/copilotstudio/pyproject.toml
@@ -4,7 +4,7 @@ description = "Copilot Studio integration for Microsoft Agent Framework."
 authors = [{ name = "Microsoft", email = "af-support@microsoft.com"}]
 readme = "README.md"
 requires-python = ">=3.10"
-version = "1.0.0-b251001"
+version = "1.0.0b251001"
 license-files = ["LICENSE"]
 urls.homepage = "https://learn.microsoft.com/en-us/semantic-kernel/overview/"
 urls.source = "https://github.com/microsoft/agent-framework/tree/main/python"
diff --git a/python/packages/core/pyproject.toml b/python/packages/core/pyproject.toml
index 02bb9371b2..6655e9a3c9 100644
--- a/python/packages/core/pyproject.toml
+++ b/python/packages/core/pyproject.toml
@@ -4,7 +4,7 @@ description = "Microsoft Agent Framework for building AI Agents with Python. Thi
 authors = [{ name = "Microsoft", email = "af-support@microsoft.com"}]
 readme = "README.md"
 requires-python = ">=3.10"
-version = "1.0.0-b251001"
+version = "1.0.0b251001"
 license-files = ["LICENSE"]
 urls.homepage = "https://learn.microsoft.com/en-us/semantic-kernel/overview/"
 urls.source = "https://github.com/microsoft/agent-framework/tree/main/python"
diff --git a/python/packages/devui/pyproject.toml b/python/packages/devui/pyproject.toml
index 0ce3b00779..c7c6780698 100644
--- a/python/packages/devui/pyproject.toml
+++ b/python/packages/devui/pyproject.toml
@@ -4,7 +4,7 @@ description = "Debug UI for Microsoft Agent Framework with OpenAI-compatible API
 authors = [{ name = "Microsoft", email = "af-support@microsoft.com"}]
 readme = "README.md"
 requires-python = ">=3.10"
-version = "1.0.0-b251001"
+version = "1.0.0b251001"
 license-files = ["LICENSE"]
 urls.homepage = "https://learn.microsoft.com/en-us/semantic-kernel/overview/"
 urls.source = "https://github.com/microsoft/agent-framework/tree/main/python"
diff --git a/python/packages/lab/pyproject.toml b/python/packages/lab/pyproject.toml
index 3b908b7d81..b9d49d1c0a 100644
--- a/python/packages/lab/pyproject.toml
+++ b/python/packages/lab/pyproject.toml
@@ -4,7 +4,7 @@ description = "Experimental modules for Microsoft Agent Framework"
 authors = [{ name = "Microsoft", email = "af-support@microsoft.com"}]
 readme = "README.md"
 requires-python = ">=3.10"
-version = "1.0.0-b251001"
+version = "1.0.0b251001"
 license-files = ["LICENSE"]
 urls.homepage = "https://learn.microsoft.com/en-us/semantic-kernel/overview/"
 urls.source = "https://github.com/microsoft/agent-framework/tree/main/python"
diff --git a/python/packages/mem0/pyproject.toml b/python/packages/mem0/pyproject.toml
index 3166cd1488..3c45492119 100644
--- a/python/packages/mem0/pyproject.toml
+++ b/python/packages/mem0/pyproject.toml
@@ -4,7 +4,7 @@ description = "Mem0 integration for Microsoft Agent Framework."
 authors = [{ name = "Microsoft", email = "af-support@microsoft.com"}]
 readme = "README.md"
 requires-python = ">=3.10"
-version = "1.0.0-b251001"
+version = "1.0.0b251001"
 license-files = ["LICENSE"]
 urls.homepage = "https://learn.microsoft.com/en-us/semantic-kernel/overview/"
 urls.source = "https://github.com/microsoft/agent-framework/tree/main/python"
diff --git a/python/packages/redis/pyproject.toml b/python/packages/redis/pyproject.toml
index 1a98e943f2..6231222286 100644
--- a/python/packages/redis/pyproject.toml
+++ b/python/packages/redis/pyproject.toml
@@ -4,7 +4,7 @@ description = "Redis integration for Microsoft Agent Framework."
 authors = [{ name = "Microsoft", email = "af-support@microsoft.com"}]
 readme = "README.md"
 requires-python = ">=3.10"
-version = "1.0.0-b251001"
+version = "1.0.0b251001"
 license-files = ["LICENSE"]
 urls.homepage = "https://learn.microsoft.com/en-us/semantic-kernel/overview/"
 urls.source = "https://github.com/microsoft/agent-framework/tree/main/python"
diff --git a/python/pyproject.toml b/python/pyproject.toml
index c3a1d91938..c991a47135 100644
--- a/python/pyproject.toml
+++ b/python/pyproject.toml
@@ -1,7 +1,7 @@
 [project]
 name = "agent-framework"
 description = "Microsoft Agent Framework for building AI Agents with Python. This package contains all the core and optional packages."
-version = "1.0.0-b251001"
+version = "1.0.0b251001"
 requires-python = ">=3.10"
 dependencies = [
     "agent-framework-core",