diff --git a/.dockerignore b/.dockerignore
index 1f2e1eb..6ea576d 100644
--- a/.dockerignore
+++ b/.dockerignore
@@ -1,4 +1,4 @@
 # Docker should ignore the local copy of Flutter and install its own,
 # since the Docker container is likely running a different OS than the
 # developer's machine.
-flutter
+flutter-sdk
diff --git a/Dockerfile b/Dockerfile
index 119ee83..f5996b0 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -25,7 +25,13 @@
 ENV PATH="/home/dart/.pub-cache/bin:${PATH}"
 
 # Set the Flutter SDK up for web compilation.
-RUN dart pub run grinder setup-flutter-sdk
+RUN dart run tool/update_sdk.dart
+
+# Set the Flutter SDK up for web compilation.	# Set the Flutter SDK up for web compilation.
+RUN flutter-sdk/bin/flutter doctor
+RUN flutter-sdk/bin/flutter config --enable-web
+RUN flutter-sdk/bin/flutter precache --web --no-android --no-ios --no-linux \
+  --no-windows --no-macos --no-fuchsia
 
 # Build the dill file
 RUN dart pub run grinder build-storage-artifacts validate-storage-artifacts
diff --git a/README.md b/README.md
index 6f41857..ee172b5 100644
--- a/README.md
+++ b/README.md
@@ -36,12 +36,11 @@
 
 ## Initialise Flutter
 
-The Flutter submodule in the git repo needs to also be downloaded and setup.
+The Flutter SDK needs to be downloaded and setup.
 
 ```bash
-$ git submodule update --init
-$ ./flutter/bin/flutter doctor -v
-$ ./flutter/bin/flutter/bin/flutter config --enable-web
+$ dart pub install
+$ dart run tool/update_sdk.dart
 ```
 
 ## Build the subsidiary files
diff --git a/cloud_run.Dockerfile b/cloud_run.Dockerfile
index c449ff3..3c6f904 100644
--- a/cloud_run.Dockerfile
+++ b/cloud_run.Dockerfile
@@ -26,7 +26,13 @@
 ENV PATH="/home/dart/.pub-cache/bin:${PATH}"
 
 # Set the Flutter SDK up for web compilation.
-RUN dart pub run grinder setup-flutter-sdk
+RUN dart run tool/update_sdk.dart
+
+# Set the Flutter SDK up for web compilation.	# Set the Flutter SDK up for web compilation.
+RUN flutter-sdk/bin/flutter doctor
+RUN flutter-sdk/bin/flutter config --enable-web
+RUN flutter-sdk/bin/flutter precache --web --no-android --no-ios --no-linux \
+  --no-windows --no-macos --no-fuchsia
 
 # Build the dill file
 RUN dart pub run grinder build-storage-artifacts validate-storage-artifacts