diff --git a/Dockerfile b/Dockerfile
index 532e836e6..b53770351 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -27,7 +27,7 @@
 #  $ docker run -v /path/to/docker-config:/opt/tegola_config -p 8080 tegola serve
 
 # Intermediary container for building
-FROM golang:1.20.5-alpine3.18 AS build
+FROM golang:1.21.8-alpine3.18 AS build
 
 ARG BUILDPKG="github.com/go-spatial/tegola/internal/build"
 ARG VER="Version Not Set"
diff --git a/README.md b/README.md
index 7d4d359f3..b94d04c7b 100644
--- a/README.md
+++ b/README.md
@@ -207,7 +207,7 @@ The requested tile will be encoded with a layer that has the `name` value set to
 
 ## Building from source
 
-Tegola is written in [Go](https://golang.org/) and requires [Go 1.19](https://go.dev/dl/) or higher to compile from the source. 
+Tegola is written in [Go](https://golang.org/) and requires [Go 1.21](https://go.dev/dl/) or higher to compile from the source. 
 (We support the two newest versions of Go.) 
 To build tegola from the source, make sure you have Go installed and have cloned the repository. 
 Navigate to the repository then run the following command:
diff --git a/go.mod b/go.mod
index 596bb61e0..451ec93fa 100644
--- a/go.mod
+++ b/go.mod
@@ -1,6 +1,6 @@
 module github.com/go-spatial/tegola
 
-go 1.20
+go 1.21
 
 require (
 	cloud.google.com/go/storage v1.28.1