diff --git a/python/uv.lock b/python/uv.lock
index 910f4b253d..5c39a03181 100644
--- a/python/uv.lock
+++ b/python/uv.lock
@@ -104,14 +104,14 @@ wheels = [
 
 [[package]]
 name = "ag-ui-protocol"
-version = "0.1.18"
+version = "0.1.19"
 source = { registry = "https://pypi.org/simple" }
 dependencies = [
     { name = "pydantic", marker = "sys_platform == 'darwin' or sys_platform == 'linux' or sys_platform == 'win32'" },
 ]
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+sdist = { url = "https://files.pythonhosted.org/packages/a7/10/4ad299267a7d04b89935aa99eef62979758fcf95aee9f8bb5d70c35b1be1/ag_ui_protocol-0.1.19.tar.gz", hash = "sha256:43c27f60d41712dcad0e9e0a203cbdf1c8e248b22417374c5c68321c448af4ea", size = 10720, upload-time = "2026-06-02T17:26:15.627Z" }
 wheels = [
-    { url = "https://files.pythonhosted.org/packages/d8/74/913c9b8fc566c6da650aecbddf25a5d8186b54138df265eb9eb546f56141/ag_ui_protocol-0.1.18-py3-none-any.whl", hash = "sha256:d151c0f0a34160647f1571163f7185746f4326b15a56d1560de5082a7a0e7a12", size = 12607, upload-time = "2026-04-21T20:45:00.097Z" },
+    { url = "https://files.pythonhosted.org/packages/4c/0a/bcad8116eb058e4b4a305e3fc37ebd7efc879deeb86b854f1c5b8b6e97dd/ag_ui_protocol-0.1.19-py3-none-any.whl", hash = "sha256:898843b1410d378824da0c6a776486288b9c5828689d0bf563118868e37f390f", size = 13490, upload-time = "2026-06-02T17:26:16.313Z" },
 ]
 
 [[package]]
@@ -230,7 +230,7 @@ dependencies = [
 [package.metadata]
 requires-dist = [
     { name = "agent-framework-core", editable = "packages/core" },
-    { name = "anthropic", specifier = ">=0.80.0,<0.107.2" },
+    { name = "anthropic", specifier = ">=0.80.0,<0.80.1" },
 ]
 
 [[package]]
@@ -1108,7 +1108,7 @@ wheels = [
 
 [[package]]
 name = "anthropic"
-version = "0.107.1"
+version = "0.80.0"
 source = { registry = "https://pypi.org/simple" }
 dependencies = [
     { name = "anyio", marker = "sys_platform == 'darwin' or sys_platform == 'linux' or sys_platform == 'win32'" },
@@ -1120,9 +1120,9 @@ dependencies = [
     { name = "sniffio", marker = "sys_platform == 'darwin' or sys_platform == 'linux' or sys_platform == 'win32'" },
     { name = "typing-extensions", marker = "sys_platform == 'darwin' or sys_platform == 'linux' or sys_platform == 'win32'" },
 ]
-sdist = { url = "https://files.pythonhosted.org/packages/b1/f1/c6076a92e0bf6b0dfa126e213b3f9e8a510acd73567953210713aae6c256/anthropic-0.107.1.tar.gz", hash = "sha256:8e7169a6ab57fb806b778d9af018c867bad688144efec8969cdb4c5ccecd6670", size = 856312, upload-time = "2026-06-07T17:18:57.358Z" }
+sdist = { url = "https://files.pythonhosted.org/packages/7f/63/791e14ef5a8ecb485cef5b5d058c7ca3ad6c50a2f94cf4cea5231c6b7c16/anthropic-0.80.0.tar.gz", hash = "sha256:ef042586673fdcab2a6ffd381aa5f9a1bcce38ffe73c07fe70bd56d12b8124ba", size = 533291, upload-time = "2026-02-17T19:26:26.717Z" }
 wheels = [
-    { url = "https://files.pythonhosted.org/packages/86/0e/71432f0777a263701955a23ebcc6650485c2753be9afbce2a6a8d72526e3/anthropic-0.107.1-py3-none-any.whl", hash = "sha256:b74338d08000ba105dfc8adae29af3713ece845a4bffec9986a20697e087c7b3", size = 838729, upload-time = "2026-06-07T17:18:58.729Z" },
+    { url = "https://files.pythonhosted.org/packages/b2/4b/665f29338f51d0c2f9e04b276ea54cc1e957ae5c521a0ad868aa80abc608/anthropic-0.80.0-py3-none-any.whl", hash = "sha256:dad0e40ec371ee686e9ffb2e0cb461a0ed51447fa100927fb5d39b174c286d6f", size = 453667, upload-time = "2026-02-17T19:26:29.96Z" },
 ]
 
 [[package]]