diff --git a/composer.json b/composer.json
index a9d3461c05..42660d216e 100644
--- a/composer.json
+++ b/composer.json
@@ -26,13 +26,16 @@
         "webmozart/path-util": "^2.3"
     },
     "require-dev": {
-        "behat/mink": "~1.7",
-        "behat/mink-goutte-driver": "~1.2",
-        "jcalderonzumba/gastonjs": "~1.0.2",
-        "jcalderonzumba/mink-phantomjs-driver": "~0.3.1",
-        "mikey179/vfsstream": "~1.2",
-        "phpunit/phpunit": ">=4.8.28 <5",
-        "symfony/css-selector": "~2.8|~3.0"
+        "behat/mink": "1.7.x-dev",
+        "behat/mink-goutte-driver": "^1.2",
+        "drupal/coder": "^8.2.12",
+        "jcalderonzumba/gastonjs": "^1.0.2",
+        "jcalderonzumba/mink-phantomjs-driver": "^0.3.1",
+        "mikey179/vfsStream": "^1.2",
+        "phpunit/phpunit": ">=4.8.35 <5",
+        "phpspec/prophecy": "^1.4",
+        "symfony/css-selector": "~3.2.8",
+        "symfony/phpunit-bridge": "~3.2.8"
     },
     "conflict": {
         "drupal/drupal": "*"