diff --git a/deployment/Dockerfile b/deployment/Dockerfile
index 37db31f..7fac90e 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:3.18.0@sha256:02bb6f428431fbc2809c5d1b41eab5a68350194fb508869a33cb1af4444c9b11 AS prod
 RUN apk add --no-cache ca-certificates
 
 # tracing config