diff --git a/CHANGES.md b/CHANGES.md
index 55e0389..90b9f7e 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -3,6 +3,11 @@
 ## Unreleased
 - Parameters: Added CLI option `--host` and environment variable `CRATEDB_MCP_HOST`
 - Parameters: Added CLI option `--path` and environment variable `CRATEDB_MCP_PATH`
+- Dependencies: Allowed updating to [FastMCP 2.10], which includes a specification
+  update to [MCP spec 2025-06-18].
+
+[FastMCP 2.10]: https://github.com/jlowin/fastmcp/releases/tag/v2.10.0
+[MCP spec 2025-06-18]: https://modelcontextprotocol.io/specification/2025-06-18/changelog
 
 ## v0.0.3 - 2025-06-18
 - Dependencies: Downgraded to `fastmcp<2.7` to fix a breaking change
diff --git a/cratedb_mcp/tool.py b/cratedb_mcp/tool.py
index 33d7aaa..ed557aa 100644
--- a/cratedb_mcp/tool.py
+++ b/cratedb_mcp/tool.py
@@ -8,7 +8,7 @@
 # ------------------------------------------
 #            Health / Status
 # ------------------------------------------
-def get_cluster_health() -> list[dict]:
+def get_cluster_health() -> dict:
     """Query sys.health ordered by severity."""
     return query_cratedb(Queries.HEALTH)
 
@@ -16,7 +16,7 @@ def get_cluster_health() -> list[dict]:
 # ------------------------------------------
 #              Text-to-SQL
 # ------------------------------------------
-def query_cratedb(query: str) -> list[dict]:
+def query_cratedb(query: str) -> dict:
     """Sends a `query` to the set `$CRATEDB_CLUSTER_URL`"""
     url = HTTP_URL
     if url.endswith("/"):
@@ -25,13 +25,13 @@ def query_cratedb(query: str) -> list[dict]:
     return httpx.post(f"{url}/_sql", json={"stmt": query}, timeout=Settings.http_timeout()).json()
 
 
-def query_sql(query: str):
+def query_sql(query: str) -> dict:
     if not sql_is_permitted(query):
         raise PermissionError("Only queries that have a SELECT statement are allowed.")
     return query_cratedb(query)
 
 
-def get_table_metadata() -> list[dict]:
+def get_table_metadata() -> dict:
     """
     Return an aggregation of schema:tables, e.g.: {'doc': [{name:'mytable', ...}, ...]}
 
@@ -48,12 +48,12 @@ def get_table_metadata() -> list[dict]:
 documentation_index = DocumentationIndex()
 
 
-def get_cratedb_documentation_index():
+def get_cratedb_documentation_index() -> dict:
     """Get curated CrateDB documentation index."""
     return documentation_index.items()
 
 
-def fetch_cratedb_docs(link: str):
+def fetch_cratedb_docs(link: str) -> str:
     """Fetch a CrateDB documentation link."""
     if not documentation_index.url_permitted(link):
         raise ValueError(f"Link is not permitted: {link}")
diff --git a/pyproject.toml b/pyproject.toml
index c17d410..88187a5 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -74,7 +74,7 @@ dependencies = [
   "cachetools<7",
   "click<9",
   "cratedb-about==0.0.5",
-  "fastmcp>=2.7,<2.10",
+  "fastmcp>=2.7,<2.11",
   "hishel<0.2",
   "pueblo==0.0.11",
   "sqlparse<0.6",
diff --git a/tests/test_cli.py b/tests/test_cli.py
index 91d7178..ec855fc 100644
--- a/tests/test_cli.py
+++ b/tests/test_cli.py
@@ -78,7 +78,10 @@ def test_cli_valid_default(mocker, capsys):
 
     # Verify the outcome.
     assert run_mock.call_count == 1
-    assert run_mock.call_args == mock.call("stdio")
+    assert run_mock.call_args in [
+        mock.call("stdio"),
+        mock.call("stdio", show_banner=True),
+    ]
 
 
 def test_cli_valid_custom(mocker, capsys):
@@ -99,7 +102,10 @@ def test_cli_valid_custom(mocker, capsys):
 
     # Verify the outcome.
     assert run_mock.call_count == 1
-    assert run_mock.call_args == mock.call("http", host="127.0.0.1", port=65535, path=None)
+    assert run_mock.call_args in [
+        mock.call("http", host="127.0.0.1", port=65535, path=None),
+        mock.call("http", show_banner=True, host="127.0.0.1", port=65535, path=None),
+    ]
 
 
 def test_cli_invalid_transport_option(mocker, capsys):