diff --git a/libraries/src/Updater/Adapter/ExtensionAdapter.php b/libraries/src/Updater/Adapter/ExtensionAdapter.php
index 78f5db5808f09..905d127a9d4d2 100644
--- a/libraries/src/Updater/Adapter/ExtensionAdapter.php
+++ b/libraries/src/Updater/Adapter/ExtensionAdapter.php
@@ -275,6 +275,12 @@ public function findUpdate($options)
             return false;
         }
 
+        /**
+         * Unset the latest update which might have been found for a previous update site, avoid
+         * strange issue reported at https://github.com/joomla/joomla-cms/issues/46066
+         */
+        unset($this->latest);
+
         if (\array_key_exists('minimum_stability', $options)) {
             $this->minimum_stability = $options['minimum_stability'];
         }