diff --git a/deployment/Dockerfile b/deployment/Dockerfile
index 37db31f..8674760 100644
--- a/deployment/Dockerfile
+++ b/deployment/Dockerfile
@@ -27,7 +27,7 @@ COPY pkg ./pkg
 RUN go install .
 
 # production image ############################################
-FROM alpine:3.15.4@sha256:4edbd2beb5f78b1014028f4fbb99f3237d9561100b6881aabbf5acce2c4f9454 AS prod
+FROM alpine:3.18.5@sha256:34871e7290500828b39e22294660bee86d966bc0017544e848dd9a255cdf59e0 AS prod
 RUN apk add --no-cache ca-certificates
 
 # tracing config