diff --git a/Dockerfile b/Dockerfile
index bd9ad64..8faa30a 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM docker.io/library/rockylinux:9.0
+FROM docker.io/library/rockylinux:9.1
 
 ARG MKISOFS_VERSION