diff --git a/README.md b/README.md
index f42bcf2..6be8002 100644
--- a/README.md
+++ b/README.md
@@ -8,7 +8,7 @@ Currently only generation of Go libraries are supported. The output is stored in
 
 If you want to modify script or templates and you can run code locally.
 
-Requires `Go 1.20` or higher.
+Requires `Go 1.21` or higher.
 
 1. Set up the project and tools by running
    ```
diff --git a/scripts/generate-sdk/languages/go.sh b/scripts/generate-sdk/languages/go.sh
index c8e451c..10d9528 100644
--- a/scripts/generate-sdk/languages/go.sh
+++ b/scripts/generate-sdk/languages/go.sh
@@ -8,7 +8,7 @@ SDK_REPO_LOCAL_PATH="${ROOT_DIR}/sdk-repo-updated"
 
 OAS_REPO=https://github.com/stackitcloud/stackit-api-specifications
 
-SDK_GO_VERSION="1.18"
+SDK_GO_VERSION="1.21"
 
 SERVICES_FOLDER="${SDK_REPO_LOCAL_PATH}/services"
 EXAMPLES_FOLDER="${SDK_REPO_LOCAL_PATH}/examples"
@@ -16,7 +16,7 @@ SCRIPTS_FOLDER="${SDK_REPO_LOCAL_PATH}/scripts"
 
 GENERATOR_LOG_LEVEL="error" # Must be a Java log level (error, warn, info...)
 
-SDK_GO_VERSION="1.18"
+SDK_GO_VERSION="1.21"
 
 generate_go_sdk() {
     # Required parameters
diff --git a/templates/go/go.mod.mustache b/templates/go/go.mod.mustache
index 9db6c4d..4d781d7 100644
--- a/templates/go/go.mod.mustache
+++ b/templates/go/go.mod.mustache
@@ -1,6 +1,6 @@
 module {{gitHost}}/{{gitUserId}}/{{gitRepoId}}/services{{#isGoSubmodule}}/{{packageName}}{{/isGoSubmodule}}
 
-go 1.18
+go 1.21
 
 require (
 	{{gitHost}}/{{gitUserId}}/{{gitRepoId}}/core v0.15.1