diff --git a/Dockerfile b/Dockerfile
index 04d63f2..a729832 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -6,5 +6,5 @@ COPY . ./
 
 RUN CGO_ENABLED=0 GOOS=linux go build -o dnscontrol-extended
 
-FROM alpine:3.18.0@sha256:c0669ef34cdc14332c0f1ab0c2c01acb91d96014b172f1a76f3a39e63d1f0bda
+FROM alpine:3.20.2@sha256:0a4eaa0eecf5f8c050e5bba433f58c052be7587ee8af3e8b3910ef9ab5fbe9f5
 COPY --from=0 /app/dnscontrol-extended /usr/local/bin/dnscontrol-extended