diff --git a/pyproject.toml b/pyproject.toml
index 963624e9b170500b40ea1ab6ffb386cc4eebe171..57444dd78a2c0268a9169c16056ecc0bcfc11f4c 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -35,6 +35,7 @@ dependencies = [
   "betterproto>=2.0.0b6",
   "nest-asyncio",
   "scipy",
+  "platformdirs",
 ]
 
 [project.urls]