diff --git a/build/dev/Dockerfile b/build/dev/Dockerfile
index c42a6ed..f215648 100644
--- a/build/dev/Dockerfile
+++ b/build/dev/Dockerfile
@@ -1,4 +1,4 @@
-FROM golang:1.19-alpine
+FROM golang:1.21-alpine
 
 # update this if different user and directory names are needed
 ARG SERVICE=go
diff --git a/build/prod/Dockerfile b/build/prod/Dockerfile
index 5b11bf2..e5f8a9b 100644
--- a/build/prod/Dockerfile
+++ b/build/prod/Dockerfile
@@ -1,4 +1,4 @@
-FROM golang:1.19-alpine AS builder
+FROM golang:1.21-alpine AS builder
 
 ARG SERVICE=go
 
diff --git a/go.mod b/go.mod
index 36b0a3f..a03eb48 100644
--- a/go.mod
+++ b/go.mod
@@ -1,6 +1,6 @@
 module github.com/csdev/ezghsa
 
-go 1.19
+go 1.21
 
 require (
 	github.com/google/go-github/v51 v51.0.0