diff --git a/remote_judger/src/providers/atcoder.ts b/remote_judger/src/providers/atcoder.ts
index 757de3a..d4e1340 100644
--- a/remote_judger/src/providers/atcoder.ts
+++ b/remote_judger/src/providers/atcoder.ts
@@ -129,6 +129,9 @@ export default class AtcoderProvider implements IBasicProvider {
       this.cookie = header['set-cookie'];
     }
 
+    let value = /csrfToken = "(.+?)"/g.exec(html);
+    if (value) return value[1];
+
     if (document.body.children.length < 2 && html.length < 512) {
       throw new Error(document.body.textContent!);
     }