diff --git a/pyproject.toml b/pyproject.toml
index 1d1ee052..b00c7b9e 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -31,6 +31,7 @@ dependencies = [
     "tenacity>=8.2.0",
     "textual>=0.47.0",
     "tqdm>=4.66.0",
+    "filelock>=3.13.0",
 ]
 
 [project.optional-dependencies]