diff --git a/llm/cli.py b/llm/cli.py
index 0a92dea..320be7b 100644
--- a/llm/cli.py
+++ b/llm/cli.py
@@ -6,7 +6,6 @@ from .migrations import migrate
 import openai
 import os
 import pathlib
-from platformdirs import user_data_dir
 import sqlite_utils
 import sys
 import warnings
@@ -241,7 +240,7 @@ def load_keys():
 
 
 def user_dir():
-    return pathlib.Path(user_data_dir("io.datasette.llm", "Datasette"))
+    return pathlib.Path(click.get_app_dir("io.datasette.llm"))
 
 
 def log_db_path():
diff --git a/setup.py b/setup.py
index b36718b..af33e78 100644
--- a/setup.py
+++ b/setup.py
@@ -36,7 +36,6 @@ setup(
         "openai",
         "click-default-group-wheel",
         "sqlite-utils",
-        "platformdirs",
     ],
     extras_require={"test": ["pytest", "requests-mock"]},
     python_requires=">=3.7",