diff --git a/Dockerfile b/Dockerfile
index d073035..7fc6cf8 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM golang:1.20.5-alpine3.17 as builder
+FROM golang:1.21.5-alpine3.17 as builder
 
 WORKDIR /go/src/github.com/mxssl/tg-captcha-bot
 COPY . .