diff --git a/pyproject.toml b/pyproject.toml
index d4d2a27..e483d04 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -23,6 +23,7 @@ dependencies = [
     "pandas",
     "tqdm",
     "ipinfo",
+    "PyYAML",
 ]
 classifiers = [
     "Programming Language :: Python",