Revert "Support symfony 3 & 4."

This reverts commit 3a96451. Merge details:
district09 · Oct 25, 2019 · 75e1bc8 · 75e1bc8
1 parent 3a96451
commit 75e1bc8
Showing 1 changed file with 2 additions and 2 deletions.
diff --git a/composer.json b/composer.json
@@ -5,8 +5,8 @@
     "minimum-stability": "dev",
     "prefer-stable": true,
     "require": {
-        "digipolisgent/robo-digipolis-helpers": "^1.0",
-        "symfony/yaml": "~4|~3",
+        "digipolisgent/robo-digipolis-helpers": "^1.0@alpha",
+        "symfony/yaml": "~4",
         "vlucas/phpdotenv": "^2.5",
         "digipolisgent/robo-digipolis-code-validation": "^0.1.1"
     },