diff --git a/packages/timeline-state-resolver/src/integrations/pharos/connection.ts b/packages/timeline-state-resolver/src/integrations/pharos/connection.ts
index 818d949ad..aa7aade18 100644
--- a/packages/timeline-state-resolver/src/integrations/pharos/connection.ts
+++ b/packages/timeline-state-resolver/src/integrations/pharos/connection.ts
@@ -5,7 +5,7 @@ import * as _ from 'underscore'
 
 /**
  * Note: This work is derived from
- * http://www.pharoscontrols.com/assets/documentation/manuals/Pharos%20Designer%202%20User%20Manual%20-%20A4.pdf
+ * https://dl.pharoscontrols.com/documentation/manuals/Pharos%20Designer%202%20User%20Manual%20-%20A4.pdf
  */
 
 // This should probably be moved into it's own library