diff --git a/docs/README.md b/docs/README.md
index c421d32..f97d005 100644
--- a/docs/README.md
+++ b/docs/README.md
@@ -68,12 +68,12 @@ Go to https://github.com/settings/keys, click “New GPG key”, paste your PGP
 
 ### Step 2: enable Git [signing](https://git-scm.com/book/en/v2/Git-Tools-Signing-Your-Work)
 
-Replace `0x1FA767862BBD1305` with your PGP public signing subkey ID.
+Replace `0xC1323A377DE14C8B` with your PGP public key ID.
 
 ```shell
 git config --global commit.gpgsign true
 git config --global gpg.program $(which gpg)
-git config --global user.signingkey 0x1FA767862BBD1305
+git config --global user.signingkey 0xC1323A377DE14C8B
 ```
 
 ### Step 3: submit pull request