diff --git a/Dockerfile b/Dockerfile
index 33d3eec..a49850c 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM alpine:3.21
+FROM alpine:3.21.1
 
 RUN apk --no-cache add net-snmp
 ADD mibs.tar.gz /mibs/