diff --git a/.devcontainer/recommended-Dockerfile b/.devcontainer/recommended-Dockerfile
index e91461cbd6..251fc54224 100644
--- a/.devcontainer/recommended-Dockerfile
+++ b/.devcontainer/recommended-Dockerfile
@@ -1,5 +1,6 @@
 # Image metadata and config.
-FROM circleci/node:10-browsers  # This needs to be in sync with what we use on CI.
+FROM circleci/node:10-browsers  # Ideally, the image version should be what we use on CI.
+                                # See `executors > browsers-executor` in `.circleci/config.yml`.
 
 LABEL name="Angular dev environment" \
       description="This image can be used to create a dev environment for building Angular." \
@@ -15,7 +16,8 @@ USER root
 
 # Configure `Node.js`/`npm` and install utilities.
 RUN npm config --global set user root
-RUN npm install --global yarn@1.19.1  # This needs to be in sync with what we use on CI.
+RUN npm install --global yarn@latest  # Ideally, the version should be what we use on CI.
+                                      # See `commands > overwrite_yarn` in `.circleci/config.yml`.
 
 
 # Go! (And keep going.)