diff --git a/ci/build_container/README.md b/ci/build_container/README.md
index d4d55d63081c..a92620ff5bbc 100644
--- a/ci/build_container/README.md
+++ b/ci/build_container/README.md
@@ -5,9 +5,10 @@
 After you have made changes to `build_container.sh` and merge them to master:
 
 1.  Checkout master and pull latest changes.
-2.  Get the SHA of the master commit of your changes to `build_container.sh`.
-3.  From `~/envoy/ci/build_container` run `update_build_container.sh`. **Make sure to have
+2.  From `~/envoy/ci/build_container` run `update_build_container.sh`. **Make sure to have
     DOCKER_USERNAME and DOCKER_PASSWORD environment variables set**. This script will build
-    the envoy-build container with the current state of `build_container.sh`, tag the image
-    with the SHA provided, and push it to Dockerhub.
-4.  After you have done that, update `ci/ci_steps.sh` to pull the new tagged version of `lyft/envoy-build`.
+    the envoy-build container with the current state of `build_container.sh`, tag the image, and push it to Dockerhub:
+    ```
+    ~/envoy/ci/build_container $ DOCKER_USERNAME=user DOCKER_PASSWORD=pass ./update_build_container.sh
+    ```
+3.  After you have done that, update `ci/ci_steps.sh` in a new PR to pull the new tagged version of `lyft/envoy-build` during CI runs. Any PRs that depend on this image change will have to merge master after the change to `ci/ci_steps.sh` has been merged to master.