diff --git a/a2a/recipe_agent/pyproject.toml b/a2a/recipe_agent/pyproject.toml
index 42829d69..9075b3a4 100644
--- a/a2a/recipe_agent/pyproject.toml
+++ b/a2a/recipe_agent/pyproject.toml
@@ -8,7 +8,7 @@ authors = [
 license = { text = "Apache" }
 requires-python = ">=3.11"
 dependencies = [
-    "a2a-sdk[http-server]>=1.1.0",
+    "a2a-sdk[http-server]>=1.1.1",
     "openai>=2.45.0",
     "pydantic-settings>=2.14.2",
     "uvicorn>=0.51.0",
diff --git a/a2a/recipe_agent/uv.lock b/a2a/recipe_agent/uv.lock
index 6dea7678..e2df4228 100644
--- a/a2a/recipe_agent/uv.lock
+++ b/a2a/recipe_agent/uv.lock
@@ -9,22 +9,21 @@ resolution-markers = [
 
 [[package]]
 name = "a2a-sdk"
-version = "1.1.0"
+version = "1.1.1"
 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/c7/7e/8ac10bbf8b15b16574355f39b17dbdf617a282c27b41c7ff2116e30336df/a2a_sdk-1.1.0.tar.gz", hash = "sha256:e8102dad1b36709dbdc3d19319e38e6dfa3b3a79c30416030eb2d482576be204", size = 375726, upload-time = "2026-05-29T09:34:43.015Z" }
+sdist = { url = "https://files.pythonhosted.org/packages/d4/1d/5214ce0a1932a986002b2d22f457d260376e7f91134f978f58a214b5ad88/a2a_sdk-1.1.1.tar.gz", hash = "sha256:1662462d1d0efef697917c59ffdef543248a1ffa9ea0f7c8403d087f4958e28b", size = 377552, upload-time = "2026-07-16T13:29:58.911Z" }
 wheels = [
-    { 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" },
+    { url = "https://files.pythonhosted.org/packages/cd/91/ab2ba19dea0771f7d5503f80e2f756f8f7195acd0e91d55e8ea893bf626f/a2a_sdk-1.1.1-py3-none-any.whl", hash = "sha256:60608eb77d62ae962795cf0bcb06f24be8470b4bf97adbc4ed32f170e9f40c3e", size = 244090, upload-time = "2026-07-16T13:29:57.387Z" },
 ]
 
 [package.optional-dependencies]
@@ -453,15 +452,6 @@ wheels = [
     { url = "https://files.pythonhosted.org/packages/2a/39/e50c7c3a983047577ee07d2a9e53faf5a69493943ec3f6a384bdc792deb2/httpx-0.28.1-py3-none-any.whl", hash = "sha256:d909fcccc110f8c7faf814ca82a9a4d816bc5a6dbfea25d6591d6985b8ba59ad", size = 73517, upload-time = "2024-12-06T15:37:21.509Z" },
 ]
 
-[[package]]
-name = "httpx-sse"
-version = "0.4.3"
-source = { registry = "https://pypi.org/simple" }
-sdist = { url = "https://files.pythonhosted.org/packages/0f/4c/751061ffa58615a32c31b2d82e8482be8dd4a89154f003147acee90f2be9/httpx_sse-0.4.3.tar.gz", hash = "sha256:9b1ed0127459a66014aec3c56bebd93da3c1bc8bb6618c8082039a44889a755d", size = 15943, upload-time = "2025-10-10T21:48:22.271Z" }
-wheels = [
-    { url = "https://files.pythonhosted.org/packages/d2/fd/6668e5aec43ab844de6fc74927e155a3b37bf40d7c3790e49fc0406b6578/httpx_sse-0.4.3-py3-none-any.whl", hash = "sha256:0ac1c9fe3c0afad2e0ebb25a934a59f4c7823b60792691f779fad2c5568830fc", size = 8960, upload-time = "2025-10-10T21:48:21.158Z" },
-]
-
 [[package]]
 name = "idna"
 version = "3.11"
@@ -913,7 +903,7 @@ dependencies = [
 
 [package.metadata]
 requires-dist = [
-    { name = "a2a-sdk", extras = ["http-server"], specifier = ">=1.1.0" },
+    { name = "a2a-sdk", extras = ["http-server"], specifier = ">=1.1.1" },
     { name = "openai", specifier = ">=2.45.0" },
     { name = "opentelemetry-exporter-otlp", specifier = ">=1.43.0" },
     { name = "pyasn1", specifier = ">=0.6.4" },