diff --git a/README.md b/README.md
index 1a6bee6..d3d153b 100644
--- a/README.md
+++ b/README.md
@@ -124,3 +124,12 @@ involved.
 
 - The result must be set as `GPG_PRIVATE_KEY` secret in github, and the passphrase as `GPG_PASSPHRASE`
 - To upload the package to S3, an AWS role must be configured to allow the github action to upload
+- To extend the validity of the keys:
+
+```
+gpg --edit-key 11162C1D8661F9148480CDD98EFF151A5DDAE8F1
+gpg> expire
+gpg> key 1
+gpg> expire
+gpg> save
+```