diff --git a/Dockerfile b/Dockerfile
index 3a169d1..b8f6648 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM golang:1.15.2 as builder
+FROM golang:1.16 as builder
 
 COPY . /build/mqtt2prometheus
 WORKDIR /build/mqtt2prometheus