diff --git a/docs/developing-locally-docker.rst b/docs/developing-locally-docker.rst
index a44c98d78..3dbe6e47d 100644
--- a/docs/developing-locally-docker.rst
+++ b/docs/developing-locally-docker.rst
@@ -150,7 +150,12 @@ Add 3rd party python packages
 To install a new 3rd party python package, you cannot use ``pip install <package_name>``, that would only add the package to the container. The container is ephemeral, so that new library won't be persisted if you run another container. Instead, you should modify the Docker image:
 You have to modify the relevant requirement file: base, local or production by adding: ::
 
-    <package_name> == <package_version>
+    <package_name>==<package_version>
+
+To get this change picked up, you'll need to rebuild the image(s) and restart the running container: ::
+
+    docker-compose -f local.yml build
+    docker-compose -f local.yml up
 
 Debugging
 ~~~~~~~~~