diff --git a/.gitignore b/.gitignore
index e8c40d0..bd8c744 100644
--- a/.gitignore
+++ b/.gitignore
@@ -169,3 +169,6 @@ test.*
 # Frontend build output
 frontend/dist/
 frontend/node_modules/
+
+# data dir for training, validation, and testing
+data/
\ No newline at end of file