diff --git a/en/contribute/how-to-contribute.md b/en/contribute/how-to-contribute.md
index 26a3bb146ec3cb2e80c898d668262fc98f0992ca..0e1f8ab9365b1a7f8c3c299992d6a816b02c89b6 100644
--- a/en/contribute/how-to-contribute.md
+++ b/en/contribute/how-to-contribute.md
@@ -8,7 +8,7 @@
 
 You must sign the Developer Certificate of Origin (DCO) before you can contribute to the community.
 
-Click [here](https://dco.openharmony.io/sign/Z2l0ZWUlMkZvcGVuX2hhcm1vbnk=) to sign the DCO, and click [here](https://dco.openharmony.io/check-sign-status) to check the signing status.
+Click [here](https://dco.openharmony.cn/#/sign) to sign the DCO, and click [here](https://dco.openharmony.cn/#/check-sign-status) to check the signing status.
 
 **Code of Conduct**
 
diff --git "a/zh-cn/contribute/\345\217\202\344\270\216\350\264\241\347\214\256.md" "b/zh-cn/contribute/\345\217\202\344\270\216\350\264\241\347\214\256.md"
index 6c8c3f8fdf91f1c7f02cad449557630154cdfc82..913739bca6eb672cec8f98df532dbca10323d881 100755
--- "a/zh-cn/contribute/\345\217\202\344\270\216\350\264\241\347\214\256.md"
+++ "b/zh-cn/contribute/\345\217\202\344\270\216\350\264\241\347\214\256.md"
@@ -8,7 +8,7 @@
 
 您必须首先签署“开发者原创声明”，然后才能参与社区贡献。
 
-点击[这里](https://dco.openharmony.io/sign/Z2l0ZWUlMkZvcGVuX2hhcm1vbnk=)签署，点击[这里](https://dco.openharmony.io/check-sign-status)查询签署状态。
+点击[这里](https://dco.openharmony.cn/#/sign)签署，点击[这里](https://dco.openharmony.cn/#/check-sign-status)查询签署状态。
 
 #### 行为准则