diff --git a/Makefile b/Makefile
index 12b6f67d5a..154b5f2348 100644
--- a/Makefile
+++ b/Makefile
@@ -91,4 +91,4 @@ clean-api-reference: ## Clean all directories in API reference directory, preser
 
 api-reference: clean-api-reference ## Build the API reference pages. go needed
 	cd api-ref-generator/gen-resourcesdocs && \
-		go run cmd/main.go kwebsite --config-dir config/v1.20/ --file api/v1.20/swagger.json --output-dir ../../content/en/docs/reference/kubernetes-api --templates templates
+		go run cmd/main.go kwebsite --config-dir config/v1.21/ --file api/v1.21/swagger.json --output-dir ../../content/en/docs/reference/kubernetes-api --templates templates
diff --git a/api-ref-generator b/api-ref-generator
index ce97454e55..23513afe9c 160000
--- a/api-ref-generator
+++ b/api-ref-generator
@@ -1 +1 @@
-Subproject commit ce97454e557b2b164f77326cb06ef619ab623599
+Subproject commit 23513afe9cf79710a2b19c5c40e38b8e2e5cd46c