diff --git a/scripts/uninstall.sh b/scripts/uninstall.sh
index 2f03c7a..fa5d0e0 100755
--- a/scripts/uninstall.sh
+++ b/scripts/uninstall.sh
@@ -26,9 +26,7 @@ remove_services() {
 }
 
 remove_crons() {
-  TMPFILE=$(mktemp)
-  crontab -l | sed -e '/birdnet/,+1d' > "${TMPFILE}"
-  crontab "${TMPFILE}"
+  sed -e '/birdnet/,+1d' /etc/crontab
 }
 
 remove_icecast() {
diff --git a/scripts/update_birdnet.sh b/scripts/update_birdnet.sh
index 7a33523..6b0127b 100755
--- a/scripts/update_birdnet.sh
+++ b/scripts/update_birdnet.sh
@@ -28,8 +28,7 @@ remove_services() {
 }
 
 remove_crons() {
-  crontab -u${USER} -l | sed -e '/birdnet/,+1d' > "${tmpfile}"
-  crontab -u${USER} "${tmpfile}"
+  sed -e '/birdnet/,+1d' /etc/crontab
 }
 
 remove_icecast() {