diff --git a/composer.json b/composer.json
index c85ca81f..058e5870 100644
--- a/composer.json
+++ b/composer.json
@@ -53,7 +53,7 @@
         "preferred-install": "dist",
         "sort-packages": true,
         "platform": {
-            "php": "7.0.8"
+            "php": "7.3.23"
         }
     }
 }
diff --git a/upstream-configuration/composer.json b/upstream-configuration/composer.json
index b50c717e..ce5d4015 100644
--- a/upstream-configuration/composer.json
+++ b/upstream-configuration/composer.json
@@ -10,16 +10,33 @@
     ],
     "require": {
         "php": ">=7.0.8",
-        "composer/installers": "^1.0.20",
+        "composer/installers": "^1.9",
         "drupal/core-composer-scaffold": "^8.8.1",
         "drupal/core-recommended": "^8.8",
         "pantheon-systems/drupal-integrations": "^8",
-        "drush/drush": "~8.3",
+        "pantheon-systems/quicksilver-pushback": "^2",
+        "drush/drush": "^10.3",
         "drupal/console": "^1",
-        "cweagans/composer-patches": "^1.0",
+        "cweagans/composer-patches": "^1.7",
         "drupal/config_direct_save": "^1.0",
-        "drupal/config_installer": "^1.0",
-        "rvtraveller/qs-composer-installer": "^1.1",
-        "zaporylie/composer-drupal-optimizations": "^1.0"
+        "drush-ops/behat-drush-endpoint": "^9.3",
+        "zaporylie/composer-drupal-optimizations": "^1.2"
+    },
+    "require-dev": {
+        "behat/behat": "3.*",
+        "behat/mink": "^1.7",
+        "behat/mink-extension": "^2.2",
+        "behat/mink-goutte-driver": "^1.2",
+        "dealerdirect/phpcodesniffer-composer-installer": "^0.7",
+        "dmore/behat-chrome-extension": "^1.3",
+        "drupal/coder": "^8.3.1",
+        "drupal/drupal-extension": "~3",
+        "genesis/behat-fail-aid": "^2.1",
+        "jcalderonzumba/gastonjs": "^1.0.2",
+        "jcalderonzumba/mink-phantomjs-driver": "^0.3.1",
+        "mikey179/vfsstream": "^1.2",
+        "phpunit/phpunit": "^6.5",
+        "squizlabs/php_codesniffer": "^3.4.0",
+        "symfony/css-selector": "^2.8"
     }
 }