diff --git a/docs/reference/yaml.md b/docs/reference/yaml.md
index c9c183f6..aaece4d7 100644
--- a/docs/reference/yaml.md
+++ b/docs/reference/yaml.md
@@ -270,6 +270,15 @@ configuration:
       source: https://github.com/openfaas-incubator/python-flask-template
 ```
 
+By default the `master` branch is pulled. Switching to a branch or tag can be achieved by extending the source URL.
+
+```yaml
+configuration:
+  templates:
+    - name: python3-http
+      source: https://github.com/openfaas-incubator/python-flask-template#feature-branch
+```
+
 ### Copy
 The `copy` list allows you to define additional project paths that will be copied into your function's handler folder.