diff --git a/Dockerfile b/Dockerfile
index d9f7edb..af54035 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -15,7 +15,7 @@ COPY . .
 
 RUN CGO_ENABLED=0 go build -o webhook -ldflags '-w -extldflags "-static"' .
 
-FROM alpine:3.20
+FROM alpine:3.21
 
 RUN apk add --no-cache ca-certificates