diff --git a/socks5.sh b/socks5.sh
index 5eb5d75..a5149a9 100644
--- a/socks5.sh
+++ b/socks5.sh
@@ -19,6 +19,15 @@ set -e
 
 export DEBIAN_FRONTEND=noninteractive
 
+# Wait for unlocking:
+   wait_for_lock() {
+     while fuser /var/lib/dpkg/lock-frontend >/dev/null 2>&1; do
+       echo "Waiting for /var/lib/dpkg/lock-frontend to be unlocked..."
+       sleep 5
+     done
+   }
+
+
 echo "Find active network interface..."
 INTERFACE=$(ip -o -4 route show to default | awk '{print $5}')
 
@@ -30,7 +39,9 @@ fi
 echo "Active network interface found: $INTERFACE"
 
 echo "Install dante-server..."
+wait_for_lock
 apt-get update
+wait_for_lock
 apt-get install -y dante-server
 
 echo "Backup existing configuration file $DANTE_CONF..."