diff --git a/daprdocs/content/en/reference/api/pubsub_api.md b/daprdocs/content/en/reference/api/pubsub_api.md
index f536771083e..8fbf0f615ba 100644
--- a/daprdocs/content/en/reference/api/pubsub_api.md
+++ b/daprdocs/content/en/reference/api/pubsub_api.md
@@ -302,7 +302,7 @@ other | warning is logged and all messages to be retried
 
 ## Message envelope
 
-Dapr pub/sub adheres to version 1.0 of CloudEvents.
+Dapr pub/sub adheres to [version 1.0 of CloudEvents](https://github.com/cloudevents/spec/blob/v1.0/spec.md).
 
 ## Related links