diff --git a/Dockerfile b/Dockerfile
index 82aa54d..51f457b 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -11,7 +11,7 @@ COPY . .
 RUN make build
 
 # Runtime image
-FROM alpine:3.20.3
+FROM alpine:3.21.0
 WORKDIR /
 
 COPY --from=builder /workspace/mqtt-prometheus-exporter .