diff --git a/.gitignore b/.gitignore
index 0e7e0ee..4879e06 100644
--- a/.gitignore
+++ b/.gitignore
@@ -67,5 +67,8 @@ venv.bak/
 .dmypy.json
 dmypy.json
 
+# ruff
+.ruff_cache/
+
 # Enzyme
 tests/data/