diff --git a/Dockerfile b/Dockerfile
index f657d31..09be599 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,7 +1,7 @@
 # Original credit: https://github.com/jpetazzo/dockvpn
 
 # Smallest base image
-FROM ubuntu:18.04@sha256:4bc3ae6596938cb0d9e5ac51a1152ec9dcac2a1c50829c74abd9c4361e321b26
+FROM ubuntu:18.04@sha256:538529c9d229fb55f50e6746b119e899775205d62c0fc1b7e679b30d02ecb6e8
 
 LABEL maintainer="lawtancool"