diff --git a/Dockerfile b/Dockerfile
index 3b8c6a2..9946fc1 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM golang:1.16 AS builder
+FROM golang:1.20 AS builder
 
 COPY serial/ /src/serial/
 WORKDIR /src/serial