diff --git a/.gitea/workflows/test.yaml b/.gitea/workflows/test.yaml
index 2a51833a..8d77048b 100644
--- a/.gitea/workflows/test.yaml
+++ b/.gitea/workflows/test.yaml
@@ -32,7 +32,7 @@ jobs:
           make prepare-zh-cn\#19
       - name: prepare awesome list
         run: |
-          make prepare-awesome-latest prepare-awesome\#20 prepare-awesome\#19
+          make prepare-awesome-latest prepare-awesome\#21 prepare-awesome\#20 prepare-awesome\#19
       - name: build site
         run: |
           make build
diff --git a/Makefile b/Makefile
index c0f59734..fa8563b4 100644
--- a/Makefile
+++ b/Makefile
@@ -74,7 +74,7 @@ install:
 	npm install
 
 .PHONY: prepare-docs
-prepare-docs: install prepare-latest prepare\#20 prepare\#19 prepare-latest-zh-cn prepare-zh-cn\#20 prepare-zh-cn\#19 prepare-awesome-latest prepare-awesome\#19 prepare-awesome\#20
+prepare-docs: install prepare-latest prepare\#21 prepare\#20 prepare\#19 prepare-latest-zh-cn prepare-zh-cn\#21 prepare-zh-cn\#20 prepare-zh-cn\#19 prepare-awesome-latest prepare-awesome\#19 prepare-awesome\#20 prepare-awesome\#21
 
 .PHONY: build
 build:
diff --git a/src/pages/api/1.21/index.js b/src/pages/api/1.21/index.js
new file mode 100644
index 00000000..1424e05b
--- /dev/null
+++ b/src/pages/api/1.21/index.js
@@ -0,0 +1,8 @@
+import React from 'react';
+import ClientOnly from '@site/src/components/ClientOnly';
+
+export default function Api21() {
+  return (
+    <ClientOnly swaggerPath="/swagger-21.json"/>
+  );
+}