diff --git a/Dockerfile b/Dockerfile
index 0ba7802..c652094 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM alpine:3.20.3
+FROM alpine:3.21.0
 
 # hadolint ignore=DL3018
 RUN apk add --no-cache \