diff --git a/pyproject.toml b/pyproject.toml
index 2e3f9f6..b1eb118 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -32,6 +32,7 @@ dependencies = [
     "pyserial>=3.5.0",
     "pyserial-asyncio_fast>=0.11",
     "backoff>=1.10.0",
+    "aifiles",
 ]
 
 [project.urls]