diff --git a/pyproject.toml b/pyproject.toml
index 2acee85..c4bbdf5 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -8,7 +8,7 @@ authors = [
 readme = "README.md"
 requires-python = ">=3.11"
 dependencies = [
-    "mcp[cli] (>=1.13,<1.14)",
+    "mcp[cli] (>=1.15,<1.16)",
     "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 5f98a10..d9b1f08 100644
--- a/uv.lock
+++ b/uv.lock
@@ -513,7 +513,7 @@ wheels = [
 
 [[package]]
 name = "mcp"
-version = "1.13.1"
+version = "1.15.0"
 source = { registry = "https://pypi.org/simple" }
 dependencies = [
     { name = "anyio" },
@@ -528,9 +528,9 @@ dependencies = [
     { name = "starlette" },
     { name = "uvicorn", marker = "sys_platform != 'emscripten'" },
 ]
-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" }
+sdist = { url = "https://files.pythonhosted.org/packages/0c/9e/e65114795f359f314d7061f4fcb50dfe60026b01b52ad0b986b4631bf8bb/mcp-1.15.0.tar.gz", hash = "sha256:5bda1f4d383cf539d3c035b3505a3de94b20dbd7e4e8b4bd071e14634eeb2d72", size = 469622, upload-time = "2025-09-25T15:39:51.995Z" }
 wheels = [
-    { 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" },
+    { url = "https://files.pythonhosted.org/packages/c9/82/4d0df23d5ff5bb982a59ad597bc7cb9920f2650278ccefb8e0d85c5ce3d4/mcp-1.15.0-py3-none-any.whl", hash = "sha256:314614c8addc67b663d6c3e4054db0a5c3dedc416c24ef8ce954e203fdc2333d", size = 166963, upload-time = "2025-09-25T15:39:50.538Z" },
 ]
 
 [package.optional-dependencies]
@@ -577,7 +577,7 @@ 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 = ">=1.13,<1.14" },
+    { name = "mcp", extras = ["cli"], specifier = ">=1.15,<1.16" },
     { name = "pillow", specifier = ">=11.2.1,<12.0.0" },
     { name = "pydantic", specifier = ">=2.11.4" },
     { name = "pythonvcard4", specifier = ">=0.2.0" },