diff --git a/pyproject.toml b/pyproject.toml
index 8746bb8f..978052e2 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -10,7 +10,7 @@ license = {text = "AGPL-3.0-only"}
 requires-python = ">=3.11"
 keywords = ["nextcloud", "mcp", "model-context-protocol", "llm", "ai", "claude", "webdav", "caldav", "carddav"]
 dependencies = [
-    "mcp[cli] (>=1.27,<1.28)",
+    "mcp[cli] (>=1.28,<1.29)",
     "httpx (>=0.28.1,<0.29.0)",
     "pillow (>=10.3.0,<12.0.0)", # Compatible with fastembed
     "icalendar (>=7.1.0,<7.2.0)",
diff --git a/uv.lock b/uv.lock
index 1f0aee46..55947621 100644
--- a/uv.lock
+++ b/uv.lock
@@ -1882,7 +1882,7 @@ wheels = [
 
 [[package]]
 name = "mcp"
-version = "1.27.0"
+version = "1.28.0"
 source = { registry = "https://pypi.org/simple" }
 dependencies = [
     { name = "anyio" },
@@ -1900,9 +1900,9 @@ dependencies = [
     { name = "typing-inspection" },
     { name = "uvicorn", marker = "sys_platform != 'emscripten'" },
 ]
-sdist = { url = "https://files.pythonhosted.org/packages/8b/eb/c0cfc62075dc6e1ec1c64d352ae09ac051d9334311ed226f1f425312848a/mcp-1.27.0.tar.gz", hash = "sha256:d3dc35a7eec0d458c1da4976a48f982097ddaab87e278c5511d5a4a56e852b83", size = 607509, upload-time = "2026-04-02T14:48:08.88Z" }
+sdist = { url = "https://files.pythonhosted.org/packages/c1/ee/94c6c50ffc5b5cf4737052275d11b57367f32d1a8516e31dcd60591b3916/mcp-1.28.0.tar.gz", hash = "sha256:559d3f9943674cafbe5744c5d3794f3237e8b47f9bbc58e20c0fad680d8487c2", size = 636040, upload-time = "2026-06-16T21:37:17.996Z" }
 wheels = [
-    { url = "https://files.pythonhosted.org/packages/9c/46/f6b4ad632c67ef35209a66127e4bddc95759649dd595f71f13fba11bdf9a/mcp-1.27.0-py3-none-any.whl", hash = "sha256:5ce1fa81614958e267b21fb2aa34e0aea8e2c6ede60d52aba45fd47246b4d741", size = 215967, upload-time = "2026-04-02T14:48:07.24Z" },
+    { url = "https://files.pythonhosted.org/packages/2e/e1/4c1dc1fbb688641a712d34650c3d58bbbdcb314ddb75bc5817bbf33515a4/mcp-1.28.0-py3-none-any.whl", hash = "sha256:9c1e7cf3a9125557e418ecd4fed8e9adddce81b0dfdae4d6601d700f5beb71a4", size = 221959, upload-time = "2026-06-16T21:37:16.579Z" },
 ]
 
 [package.optional-dependencies]
@@ -2268,7 +2268,7 @@ requires-dist = [
     { name = "jinja2", specifier = ">=3.1.6" },
     { name = "langchain-text-splitters", specifier = ">=1.0.0" },
     { name = "markdownify", specifier = ">=0.14.1" },
-    { name = "mcp", extras = ["cli"], specifier = ">=1.27,<1.28" },
+    { name = "mcp", extras = ["cli"], specifier = ">=1.28,<1.29" },
     { name = "mistralai", specifier = ">=2.4.5" },
     { name = "openai", specifier = ">=2.8.1" },
     { name = "opentelemetry-api", specifier = ">=1.28.2" },