diff --git a/.github/renovate.json5 b/.github/renovate.json5
index da430a06..05a314dd 100644
--- a/.github/renovate.json5
+++ b/.github/renovate.json5
@@ -5,7 +5,7 @@
     "master"
   ],
   constraints: {
-    "go": "1.19"
+    "go": "1.21"
   },
   extends: [
     // A lot of default settings that you can extend can be found in the presets section: https://docs.renovatebot.com/presets-compatibility/
diff --git a/gwy/templates/Dockerfile.tmpl b/gwy/templates/Dockerfile.tmpl
index 11f8775e..2a473713 100644
--- a/gwy/templates/Dockerfile.tmpl
+++ b/gwy/templates/Dockerfile.tmpl
@@ -1,7 +1,7 @@
 # Template for grpc-gateway 
 
 ARG alpine_version=3.18
-ARG go_version=1.19
+ARG go_version=1.21
 FROM golang:$go_version-alpine$alpine_version AS build
 
 ARG go_version
diff --git a/variables.sh b/variables.sh
index cffbc9e5..47d24b7a 100755
--- a/variables.sh
+++ b/variables.sh
@@ -7,7 +7,7 @@ CONTAINER=${DOCKER_REPO}${NAMESPACE}
 LATEST=${1:false}
 
 DEBIAN_VERSION=${DEBIAN_VERSION:-bullseye}
-GO_VERSION=${GO_VERSION:-1.19}
+GO_VERSION=${GO_VERSION:-1.21}
 GRPC_VERSION=${GRPC_VERSION:-1.51}
 GRPC_JAVA_VERSION=${GRPC_JAVA_VERSION:-1.51}
 GRPC_WEB_VERSION=${GRPC_WEB_VERSION:-1.4.2}