diff --git a/lib/modinfolib.php b/lib/modinfolib.php
index 765aeba500e6b..fca0b7071d0e1 100644
--- a/lib/modinfolib.php
+++ b/lib/modinfolib.php
@@ -970,6 +970,7 @@ public static function get_array_of_activities(stdClass $course, bool $usecache
      * @param int $courseid Course id
      */
     public static function purge_course_cache(int $courseid): void {
+        increment_revision_number('course', 'cacherev', 'id = :id', array('id' => $courseid));
         $cachemodinfo = cache::make('core', 'coursemodinfo');
         $cachemodinfo->delete($courseid);
     }