diff --git a/Dockerfile b/Dockerfile
index c9f30f9..8238062 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,5 +1,5 @@
 # Builder image
-FROM golang:1.20.3-alpine3.17 AS builder
+FROM golang:1.21.3-alpine3.17 AS builder
 
 WORKDIR /build