diff --git a/deploy/docker/Dockerfile b/deploy/docker/Dockerfile
index 5d4a162..3f70654 100644
--- a/deploy/docker/Dockerfile
+++ b/deploy/docker/Dockerfile
@@ -18,7 +18,7 @@ RUN CGO_ENABLED=1 go build \
     -o /chronos ./cli/main.go
 
 # ── Runtime stage ────────────────────────────────────────────
-FROM alpine:3.21
+FROM alpine:3.23
 
 RUN apk add --no-cache sqlite-libs ca-certificates tzdata