diff --git a/api-docs/swagger.yml b/api-docs/swagger.yml
index fb02b189..0fed4c4c 100644
--- a/api-docs/swagger.yml
+++ b/api-docs/swagger.yml
@@ -160,7 +160,7 @@ paths:
     post:
       summary: 'Invoke a function asynchronously in OpenFaaS'
       description: >-
-        See https://github.com/openfaas/faas/blob/master/guide/asynchronous.md.
+        See https://docs.openfaas.com/reference/async/.
       parameters:
       - in: path
         name: functionName