diff --git a/src/fastmcp/server/server.py b/src/fastmcp/server/server.py
index 3fd9fa9eb..493d10804 100644
--- a/src/fastmcp/server/server.py
+++ b/src/fastmcp/server/server.py
@@ -140,19 +140,18 @@ class FastMCP(Generic[LifespanResultT]):
             ]
             | None
         ) = None,
-        tool_serializer: Callable[[Any], str] | None = None,
-        cache_expiration_seconds: float | None = None,
-        on_duplicate_tools: DuplicateBehavior | None = None,
-        on_duplicate_resources: DuplicateBehavior | None = None,
-        on_duplicate_prompts: DuplicateBehavior | None = None,
+        dependencies: list[str] | None = None,
         resource_prefix_format: Literal["protocol", "path"] | None = None,
         mask_error_details: bool | None = None,
         tools: list[Tool | Callable[..., Any]] | None = None,
         tool_transformations: dict[str, ToolTransformConfig] | None = None,
-        dependencies: list[str] | None = None,
+        tool_serializer: Callable[[Any], str] | None = None,
         include_tags: set[str] | None = None,
         exclude_tags: set[str] | None = None,
         include_fastmcp_meta: bool | None = None,
+        on_duplicate_tools: DuplicateBehavior | None = None,
+        on_duplicate_resources: DuplicateBehavior | None = None,
+        on_duplicate_prompts: DuplicateBehavior | None = None,
         # ---
         # ---
         # --- The following arguments are DEPRECATED ---
diff --git a/tests/deprecated/test_settings.py b/tests/deprecated/test_settings.py
index 9e6f3c335..ad6a29a67 100644
--- a/tests/deprecated/test_settings.py
+++ b/tests/deprecated/test_settings.py
@@ -176,7 +176,6 @@ class TestDeprecatedServerInitKwargs:
             server = FastMCP(
                 name="TestServer",
                 instructions="Test instructions",
-                cache_expiration_seconds=60.0,
                 on_duplicate_tools="warn",
                 on_duplicate_resources="error",
                 on_duplicate_prompts="replace",
diff --git a/tests/server/test_mount.py b/tests/server/test_mount.py
index 1697bb125..9312f0d4e 100644
--- a/tests/server/test_mount.py
+++ b/tests/server/test_mount.py
@@ -637,23 +637,9 @@ class TestDynamicChanges:
         sub_app._tool_manager._tools.pop("temp_tool")
 
         # The tool should no longer be accessible
-        # Refresh the cache by clearing it
         tools = await main_app.get_tools()
         assert "sub_temp_tool" not in tools
 
-    async def test_cache_expiration(self):
-        main_app = FastMCP("MainApp", cache_expiration_seconds=2)
-        sub_app = FastMCP("SubApp")
-        tools = await main_app.get_tools()
-        assert len(tools) == 0
-
-        @sub_app.tool
-        def sub_tool():
-            return "sub_tool"
-
-        tools = await main_app.get_tools()
-        assert len(tools) == 0
-
 
 class TestResourcesAndTemplates:
     """Test mounting with resources and resource templates."""