diff --git a/cmd/kyma/init/function/function.go b/cmd/kyma/init/function/function.go
index b8e086ff4..f04ed97b1 100644
--- a/cmd/kyma/init/function/function.go
+++ b/cmd/kyma/init/function/function.go
@@ -57,6 +57,7 @@ Use the flags to specify the initial configuration for your Function or to choos
 		`Flag used to define the environment for running your Function. Use one of these options:
 	- nodejs16 (deprecated)
 	- nodejs18 
+	- nodejs20
 	- python39`,
 	)
 	cmd.Flags().StringVar(&o.SchemaVersion, "schema-version", string(workspace.SchemaVersionDefault), `Version of the config API.`)
diff --git a/cmd/kyma/run/function/function.go b/cmd/kyma/run/function/function.go
index 6224523c2..9bc5e17c9 100644
--- a/cmd/kyma/run/function/function.go
+++ b/cmd/kyma/run/function/function.go
@@ -124,6 +124,7 @@ func (c *command) workspaceConfig(path string) (workspace.Cfg, error) {
 	supportedRuntimes := map[string]struct{}{
 		"nodejs16": {},
 		"nodejs18": {},
+		"nodejs20": {},
 		"python39": {},
 	}
 	if _, ok := supportedRuntimes[cfg.Runtime]; !ok {
diff --git a/docs/gen-docs/kyma_init_function.md b/docs/gen-docs/kyma_init_function.md
index 1fc6248d0..58488275e 100644
--- a/docs/gen-docs/kyma_init_function.md
+++ b/docs/gen-docs/kyma_init_function.md
@@ -25,6 +25,7 @@ kyma init function [flags]
   -r, --runtime string                  Flag used to define the environment for running your Function. Use one of these options:
                                         	- nodejs16 (deprecated)
                                         	- nodejs18 
+                                        	- nodejs20
                                         	- python39 (default "nodejs18")
       --runtime-image-override string   Set custom runtime image base.
       --schema-version string           Version of the config API. (default "v0")