diff --git a/Dockerfile b/Dockerfile
index 265a6d3..82b6778 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM golang:1.20-alpine AS builder
+FROM golang:1.21-alpine AS builder
 WORKDIR /go/src/github.com/vigo/lsvirtualenvs
 COPY . .