diff --git a/pyproject.toml b/pyproject.toml
index 60408aa8..2109ae63 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -8,7 +8,7 @@ authors = [
 readme = "README.md"
 requires-python = ">=3.11"
 dependencies = [
-    "mcp[cli] (>=1.10,<1.11)",
+    "mcp[cli] (>=1.13,<1.14)",
     "httpx (>=0.28.1,<0.29.0)",
     "pillow (>=11.2.1,<12.0.0)",
     "icalendar (>=6.0.0,<7.0.0)",
diff --git a/uv.lock b/uv.lock
index 25628873..5d9e81ca 100644
--- a/uv.lock
+++ b/uv.lock
@@ -469,7 +469,7 @@ wheels = [
 
 [[package]]
 name = "mcp"
-version = "1.10.1"
+version = "1.13.1"
 source = { registry = "https://pypi.org/simple" }
 dependencies = [
     { name = "anyio" },
@@ -479,13 +479,14 @@ dependencies = [
     { name = "pydantic" },
     { name = "pydantic-settings" },
     { name = "python-multipart" },
+    { name = "pywin32", marker = "sys_platform == 'win32'" },
     { name = "sse-starlette" },
     { name = "starlette" },
     { name = "uvicorn", marker = "sys_platform != 'emscripten'" },
 ]
-sdist = { url = "https://files.pythonhosted.org/packages/7c/68/63045305f29ff680a9cd5be360c755270109e6b76f696ea6824547ddbc30/mcp-1.10.1.tar.gz", hash = "sha256:aaa0957d8307feeff180da2d9d359f2b801f35c0c67f1882136239055ef034c2", size = 392969, upload-time = "2025-06-27T12:03:08.982Z" }
+sdist = { url = "https://files.pythonhosted.org/packages/66/3c/82c400c2d50afdac4fbefb5b4031fd327e2ad1f23ccef8eee13c5909aa48/mcp-1.13.1.tar.gz", hash = "sha256:165306a8fd7991dc80334edd2de07798175a56461043b7ae907b279794a834c5", size = 438198, upload-time = "2025-08-22T09:22:16.061Z" }
 wheels = [
-    { url = "https://files.pythonhosted.org/packages/d7/3f/435a5b3d10ae242a9d6c2b33175551173c3c61fe637dc893be05c4ed0aaf/mcp-1.10.1-py3-none-any.whl", hash = "sha256:4d08301aefe906dce0fa482289db55ce1db831e3e67212e65b5e23ad8454b3c5", size = 150878, upload-time = "2025-06-27T12:03:07.328Z" },
+    { url = "https://files.pythonhosted.org/packages/19/3f/d085c7f49ade6d273b185d61ec9405e672b6433f710ea64a90135a8dd445/mcp-1.13.1-py3-none-any.whl", hash = "sha256:c314e7c8bd477a23ba3ef472ee5a32880316c42d03e06dcfa31a1cc7a73b65df", size = 161494, upload-time = "2025-08-22T09:22:14.705Z" },
 ]
 
 [package.optional-dependencies]
@@ -532,7 +533,7 @@ requires-dist = [
     { name = "click", specifier = ">=8.1.8" },
     { name = "httpx", specifier = ">=0.28.1,<0.29.0" },
     { name = "icalendar", specifier = ">=6.0.0,<7.0.0" },
-    { name = "mcp", extras = ["cli"], specifier = ">=1.10,<1.11" },
+    { name = "mcp", extras = ["cli"], specifier = ">=1.13,<1.14" },
     { name = "pillow", specifier = ">=11.2.1,<12.0.0" },
     { name = "pydantic", specifier = ">=2.11.4" },
     { name = "pythonvcard4", specifier = ">=0.2.0" },
@@ -858,6 +859,25 @@ wheels = [
     { url = "https://files.pythonhosted.org/packages/0d/2f/ee10d88bbe12e4e9e06f81589d999687038e5cd5fec6c05aed57c50aede6/pythonvcard4-0.2.0-py3-none-any.whl", hash = "sha256:dce31355dd50aee537f8883de86f301510e407bc1755a68ec8d5055b64f5c660", size = 5890, upload-time = "2025-04-26T23:18:48.2Z" },
 ]
 
+[[package]]
+name = "pywin32"
+version = "311"
+source = { registry = "https://pypi.org/simple" }
+wheels = [
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+    { url = "https://files.pythonhosted.org/packages/51/8f/9bb81dd5bb77d22243d33c8397f09377056d5c687aa6d4042bea7fbf8364/pywin32-311-cp311-cp311-win_amd64.whl", hash = "sha256:3ce80b34b22b17ccbd937a6e78e7225d80c52f5ab9940fe0506a1a16f3dab503", size = 9508308, upload-time = "2025-07-14T20:13:15.147Z" },
+    { url = "https://files.pythonhosted.org/packages/44/7b/9c2ab54f74a138c491aba1b1cd0795ba61f144c711daea84a88b63dc0f6c/pywin32-311-cp311-cp311-win_arm64.whl", hash = "sha256:a733f1388e1a842abb67ffa8e7aad0e70ac519e09b0f6a784e65a136ec7cefd2", size = 8703930, upload-time = "2025-07-14T20:13:16.945Z" },
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+
 [[package]]
 name = "pyyaml"
 version = "6.0.2"