diff --git a/bin/build.sh b/bin/build.sh
index 958f779c..3ddde677 100755
--- a/bin/build.sh
+++ b/bin/build.sh
@@ -43,7 +43,8 @@ while true; do
             echo -e '\n######################'
             echo -e '# Run Composer'
             echo -e '######################\n'
-            echo -e "Make sure you're connected to MoJ Digital VPN.\n"
+            echo -e "Make sure you are authenticated to Private Packagist.\n"
+            rm composer.lock
             composer install --no-cache
 
             # Test NPM is installed locally
diff --git a/docker-compose.yml b/docker-compose.yml
index 61038529..6c54fb5c 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -63,6 +63,7 @@ services:
       S3_UPLOADS_REGION: ""
       S3_UPLOADS_BUCKET: ""
       SERVER_NAME: "hale.docker"
+      PHP_DSN: ""
 
   phpmyadmin:
     image: phpmyadmin/phpmyadmin