diff --git a/.gitignore b/.gitignore
index 753dfef77..5e38a44d1 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,7 @@
 # Jupyter Notebook
 .ipynb_checkpoints
 *.ipynb
+
+# Output files, except requirements.txt
+*.txt
+!requirements.txt