diff --git a/Dockerfile b/Dockerfile
index a0dd74b..71bc3dd 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM golang:1.20.7-alpine3.18 as builder
+FROM golang:1.21.5-alpine3.18 as builder
 
 WORKDIR /app