diff --git a/Dockerfile b/Dockerfile
index f4ae01b..c2fbe42 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,5 +1,5 @@
 # build binary
-FROM golang:1.21.4 AS builder
+FROM golang:1.21.6 AS builder
 WORKDIR /app
 
 # populate the module cache based on the go.{mod,sum} files.