diff --git a/Dockerfile b/Dockerfile
index 350c576..b5128cd 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM ubuntu:latest
+FROM ubuntu:22.04
 
 USER root
 
diff --git a/build.sh b/build.sh
old mode 100644
new mode 100755