diff --git a/Dockerfile b/Dockerfile
index d874818..edb70d7 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -2,7 +2,7 @@ FROM golang:1.20-alpine3.18 AS builder
 
 WORKDIR /app
 
-COPY go.mod .
+COPY go.sum .
 COPY go.mod .
 
 RUN go mod download