diff --git a/Dockerfile b/Dockerfile
index c87e09b50e..007cda8e3c 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,6 +1,6 @@
 ARG BASE_IMAGE=alpine
 
-FROM golang:1.18.3-alpine3.15 AS builder
+FROM golang:1.18.5-alpine3.15 AS builder
 
 WORKDIR /usr/local/src/dex