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diff --git a/doc/packages-update.md b/doc/packages-update.md
index 57f02d9..4604bae 100644
--- a/doc/packages-update.md
+++ b/doc/packages-update.md
@@ -1,7 +1,7 @@
Manage system update
====================
-[◀ Go back to main README](../README.md)
+[⬅️ Go back to main README](../README.md)
> ℹ️ **Info**: This script can not be used on its own but requires the base
> installation. See [main README](../README.md) for details.
@@ -48,5 +48,5 @@ See also
* [Automatically upgrade firmware and reboot](firmware-upgrade-reboot.md)
---
-[◀ Go back to main README](../README.md)
-[▲ Go back to top](#top)
+[⬅️ Go back to main README](../README.md)
+[⬆️ Go back to top](#top)