diff --git a/Dockerfile b/Dockerfile
index 5933512..11aca10 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM golang:1.21.1-alpine3.18 AS builder
+FROM golang:1.21.3-alpine3.18 AS builder
 WORKDIR /usr/src/app
 COPY go.mod go.sum ./
 RUN go mod download && go mod verify