diff --git a/composer.json b/composer.json
index fb731d7..c32569e 100644
--- a/composer.json
+++ b/composer.json
@@ -19,8 +19,8 @@
     },
     "require":{
         "php":">=5.4",
-        "contao-community-alliance/composer-plugin": "~2.4 | ~3.0",
-        "contao/core-bundle":"~3.5 | ~4.3"
+        "contao-community-alliance/composer-plugin": "~2.4 || ~3.0",
+        "contao/core-bundle":"~3.5 || ~4.3"
     },
     "suggest": {
         "netzmacht/contao-leaflet-maps": "Leaflet maps integration into Contao CMS"