diff --git a/dhcp-controller/dhcpserver/Dockerfile b/dhcp-controller/dhcpserver/Dockerfile
index 0659ab07..ba245c3d 100644
--- a/dhcp-controller/dhcpserver/Dockerfile
+++ b/dhcp-controller/dhcpserver/Dockerfile
@@ -21,7 +21,7 @@ RUN CGO_ENABLED=0 GOOS=linux GOARCH=amd64 go build -a -o manager main.go
 
 # Use distroless as minimal base image to package the manager binary
 # Refer to https://github.com/GoogleContainerTools/distroless for more details
-FROM alpine:3.20
+FROM alpine:3.21.2
 RUN apk add --no-cache dnsmasq
 WORKDIR /
 COPY --from=builder /workspace/manager .