diff --git a/a2a/image_service/pyproject.toml b/a2a/image_service/pyproject.toml
index 0834f50d..61127dc3 100644
--- a/a2a/image_service/pyproject.toml
+++ b/a2a/image_service/pyproject.toml
@@ -6,7 +6,7 @@ readme = "README.md"
 license = { text = "Apache" }
 requires-python = ">=3.11"
 dependencies = [
-    "a2a-sdk>=0.2.16",
+    "a2a-sdk>=1.1.0",
     "langgraph>=1.2.2",
     "langchain-core>=1.4.0",
     "langchain-community>=0.4.2",
diff --git a/a2a/image_service/uv.lock b/a2a/image_service/uv.lock
index 16af004d..e9ce726f 100644
--- a/a2a/image_service/uv.lock
+++ b/a2a/image_service/uv.lock
@@ -9,18 +9,22 @@ resolution-markers = [
 
 [[package]]
 name = "a2a-sdk"
-version = "0.3.16"
+version = "1.1.0"
 source = { registry = "https://pypi.org/simple" }
 dependencies = [
+    { name = "culsans", marker = "python_full_version < '3.13'" },
     { name = "google-api-core" },
+    { name = "googleapis-common-protos" },
     { name = "httpx" },
     { name = "httpx-sse" },
+    { name = "json-rpc" },
+    { name = "packaging" },
     { name = "protobuf" },
     { name = "pydantic" },
 ]
-sdist = { url = "https://files.pythonhosted.org/packages/df/57/0c5605a956646c3a3fe0a6f0eb2eb1193718b01b5ef3fb7288b20684e67b/a2a_sdk-0.3.16.tar.gz", hash = "sha256:bc579091cfcf18341076379ea7efb361df0aca4822db05db7267d9d7f881e964", size = 228805, upload-time = "2025-11-21T13:34:48.842Z" }
+sdist = { url = "https://files.pythonhosted.org/packages/c7/7e/8ac10bbf8b15b16574355f39b17dbdf617a282c27b41c7ff2116e30336df/a2a_sdk-1.1.0.tar.gz", hash = "sha256:e8102dad1b36709dbdc3d19319e38e6dfa3b3a79c30416030eb2d482576be204", size = 375726, upload-time = "2026-05-29T09:34:43.015Z" }
 wheels = [
-    { url = "https://files.pythonhosted.org/packages/98/e9/2fb9871bb416ae34b3a8f3c08de4bccb0a9b3b1dc0cb9a48940b13c14601/a2a_sdk-0.3.16-py3-none-any.whl", hash = "sha256:e5e1d6f8208985ed42b488dde9721bfb9efdf94e903700bb6c53d599b1433e03", size = 141390, upload-time = "2025-11-21T13:34:47.332Z" },
+    { url = "https://files.pythonhosted.org/packages/d4/ea/3a5b160cfd51c67759b08748051094d9365ceff18127633d0021950c9860/a2a_sdk-1.1.0-py3-none-any.whl", hash = "sha256:d7f5846caf18033d8bf3108b11ec827dd8dd32f867c98848ede0e39474be93be", size = 241886, upload-time = "2026-05-29T09:34:41.484Z" },
 ]
 
 [[package]]
@@ -159,6 +163,20 @@ wheels = [
     { url = "https://files.pythonhosted.org/packages/70/11/7f83fcba9ee05d4c54d61b3f8104da0d43a59adac44dd28effc0c9a10422/aiohttp-3.14.0-cp314-cp314t-win_arm64.whl", hash = "sha256:7a3fc4358e65826c515350f199c210de747cf669998211b1ee6c2e46de364b24", size = 467399, upload-time = "2026-06-01T19:40:59.993Z" },
 ]
 
+[[package]]
+name = "aiologic"
+version = "0.16.0"
+source = { registry = "https://pypi.org/simple" }
+dependencies = [
+    { name = "sniffio", marker = "python_full_version < '3.13'" },
+    { name = "typing-extensions", marker = "python_full_version < '3.13'" },
+    { name = "wrapt", marker = "python_full_version < '3.13'" },
+]
+sdist = { url = "https://files.pythonhosted.org/packages/a8/13/50b91a3ea6b030d280d2654be97c48b6ed81753a50286ee43c646ba36d3c/aiologic-0.16.0.tar.gz", hash = "sha256:c267ccbd3ff417ec93e78d28d4d577ccca115d5797cdbd16785a551d9658858f", size = 225952, upload-time = "2025-11-27T23:48:41.195Z" }
+wheels = [
+    { url = "https://files.pythonhosted.org/packages/f6/27/206615942005471499f6fbc36621582e24d0686f33c74b2d018fcfd4fe67/aiologic-0.16.0-py3-none-any.whl", hash = "sha256:e00ce5f68c5607c864d26aec99c0a33a83bdf8237aa7312ffbb96805af67d8b6", size = 135193, upload-time = "2025-11-27T23:48:40.099Z" },
+]
+
 [[package]]
 name = "aiosignal"
 version = "1.4.0"
@@ -445,6 +463,19 @@ wheels = [
     { url = "https://files.pythonhosted.org/packages/a2/ca/7e8365deec19afb2b2c7be7c1c0aa8f99633b54e90c570999acda93260fc/cryptography-48.0.0-pp311-pypy311_pp73-win_amd64.whl", hash = "sha256:db63bf618e5dea46c07de12e900fe1cdd2541e6dc9dbae772a70b7d4d4765f6a", size = 3739536, upload-time = "2026-05-04T22:59:29.61Z" },
 ]
 
+[[package]]
+name = "culsans"
+version = "0.11.0"
+source = { registry = "https://pypi.org/simple" }
+dependencies = [
+    { name = "aiologic", marker = "python_full_version < '3.13'" },
+    { name = "typing-extensions", marker = "python_full_version < '3.13'" },
+]
+sdist = { url = "https://files.pythonhosted.org/packages/d9/e3/49afa1bc180e0d28008ec6bcdf82a4072d1c7a41032b5b759b60814ca4b0/culsans-0.11.0.tar.gz", hash = "sha256:0b43d0d05dce6106293d114c86e3fb4bfc63088cfe8ff08ed3fe36891447fe33", size = 107546, upload-time = "2025-12-31T23:15:38.196Z" }
+wheels = [
+    { url = "https://files.pythonhosted.org/packages/e0/5d/9fb19fb38f6d6120422064279ea5532e22b84aa2be8831d49607194feda3/culsans-0.11.0-py3-none-any.whl", hash = "sha256:278d118f63fc75b9db11b664b436a1b83cc30d9577127848ba41420e66eb5a47", size = 21811, upload-time = "2025-12-31T23:15:37.189Z" },
+]
+
 [[package]]
 name = "deprecation"
 version = "2.1.0"
@@ -797,7 +828,7 @@ dependencies = [
 
 [package.metadata]
 requires-dist = [
-    { name = "a2a-sdk", specifier = ">=0.2.16" },
+    { name = "a2a-sdk", specifier = ">=1.1.0" },
     { name = "aiohttp", specifier = ">=3.14.0" },
     { name = "cryptography", specifier = ">=48.0.0,<49" },
     { name = "langchain-classic", specifier = ">=1.0.7" },
@@ -907,6 +938,15 @@ wheels = [
     { url = "https://files.pythonhosted.org/packages/2f/9c/6753e6522b8d0ef07d3a3d239426669e984fb0eba15a315cdbc1253904e4/jiter-0.12.0-graalpy312-graalpy250_312_native-manylinux_2_17_x86_64.manylinux2014_x86_64.whl", hash = "sha256:c24e864cb30ab82311c6425655b0cdab0a98c5d973b065c66a3f020740c2324c", size = 346110, upload-time = "2025-11-09T20:49:21.817Z" },
 ]
 
+[[package]]
+name = "json-rpc"
+version = "1.15.0"
+source = { registry = "https://pypi.org/simple" }
+sdist = { url = "https://files.pythonhosted.org/packages/6d/9e/59f4a5b7855ced7346ebf40a2e9a8942863f644378d956f68bcef2c88b90/json-rpc-1.15.0.tar.gz", hash = "sha256:e6441d56c1dcd54241c937d0a2dcd193bdf0bdc539b5316524713f554b7f85b9", size = 28854, upload-time = "2023-06-11T09:45:49.078Z" }
+wheels = [
+    { url = "https://files.pythonhosted.org/packages/94/9e/820c4b086ad01ba7d77369fb8b11470a01fac9b4977f02e18659cf378b6b/json_rpc-1.15.0-py2.py3-none-any.whl", hash = "sha256:4a4668bbbe7116feb4abbd0f54e64a4adcf4b8f648f19ffa0848ad0f6606a9bf", size = 39450, upload-time = "2023-06-11T09:45:47.136Z" },
+]
+
 [[package]]
 name = "jsonpatch"
 version = "1.33"