diff --git a/scripts/uninstall.sh b/scripts/uninstall.sh
index fa5d0e0..50823d3 100755
--- a/scripts/uninstall.sh
+++ b/scripts/uninstall.sh
@@ -26,7 +26,7 @@ remove_services() {
 }
 
 remove_crons() {
-  sed -e '/birdnet/,+1d' /etc/crontab
+  sudo sed -i '/birdnet/,+1d' /etc/crontab
 }
 
 remove_icecast() {
diff --git a/scripts/update_birdnet.sh b/scripts/update_birdnet.sh
index 6b0127b..43724ac 100755
--- a/scripts/update_birdnet.sh
+++ b/scripts/update_birdnet.sh
@@ -28,7 +28,7 @@ remove_services() {
 }
 
 remove_crons() {
-  sed -e '/birdnet/,+1d' /etc/crontab
+  sudo sed -i '/birdnet/,+1d' /etc/crontab
 }
 
 remove_icecast() {