diff --git a/Dockerfile b/Dockerfile
index 9bda18c..9bdd3e0 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM golang:1.19-alpine AS build_deps
+FROM golang:1.21-alpine3.18 AS build_deps
 
 RUN apk add --no-cache git
 
@@ -15,7 +15,7 @@ COPY . .
 
 RUN CGO_ENABLED=0 go build -o webhook -ldflags '-w -extldflags "-static"' .
 
-FROM alpine:3.9
+FROM alpine:3.18
 
 RUN apk add --no-cache ca-certificates