diff --git a/pyproject.toml b/pyproject.toml
index 5f0b64b..0f83998 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -10,7 +10,7 @@ dependencies = [
     "pathlib>=1.0.1",
     "rich-click>=1.6.0",
     "rich>=10.0.0",
-    "six>=1.16.0",
+    "six>=1.17.0",
     "numpy>=1.20.0",
     "pandas>=1.3.0",
     "biopython>=1.78",