diff --git a/Dockerfile b/Dockerfile
index b2926d8..3ff1f85 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM golang:1.19 as build
+FROM golang:1.21 as build
 
 ARG BUILD_SHA
 
diff --git a/Vagrantfile b/Vagrantfile
index 096cf17..69703b9 100644
--- a/Vagrantfile
+++ b/Vagrantfile
@@ -56,9 +56,9 @@ Vagrant.configure("2") do |config|
       net-tools \
       ;
 
-    goversion=1.19.2
+    goversion=1.21.5
     wget https://go.dev/dl/go${goversion}.linux-amd64.tar.gz
-    echo "5e8c5a74fe6470dd7e055a461acda8bb4050ead8c2df70f227e3ff7d8eb7eeb6 go${goversion}.linux-amd64.tar.gz" | sha256sum --check
+    echo "aea86e3c73495f205929cfebba0d63f1382c8ac59be081b6351681415f4063cf go${goversion}.linux-amd64.tar.gz" | sha256sum --check
     rm -rf /usr/local/go && tar -C /usr/local -xzf go${goversion}.linux-amd64.tar.gz
     echo 'export PATH=/usr/local/go/bin:$PATH' | tee /etc/profile.d/golang.sh
     /usr/local/go/bin/go version
diff --git a/dockerproxy/go.mod b/dockerproxy/go.mod
index 26bf40f..e00b3d1 100644
--- a/dockerproxy/go.mod
+++ b/dockerproxy/go.mod
@@ -1,6 +1,6 @@
 module github.com/superfly/rchab/dockerproxy
 
-go 1.19
+go 1.21
 
 require (
 	github.com/docker/docker v20.10.8+incompatible