diff --git a/levels/experiments/pull-merge-push b/levels/experiments/pull-merge-push
index 1e64ffc..387980b 100644
--- a/levels/experiments/pull-merge-push
+++ b/levels/experiments/pull-merge-push
@@ -16,7 +16,7 @@ Good job! Here's some additional info: banana!
 echo fu > file
 git add .
 git commit -m "Initial commit"
-git push
+git push -u origin main
 
 echo fi > file
 git commit -a -m "Fi is good"
diff --git a/levels/experiments/sandbox b/levels/experiments/sandbox
index c6396c5..68052c8 100644
--- a/levels/experiments/sandbox
+++ b/levels/experiments/sandbox
@@ -3,6 +3,6 @@
 git commit --allow-empty -m "1"
 git commit --allow-empty -m "2"
 git commit --allow-empty -m "3"
-git push
+git push -u origin main
 
 [setup origin]