diff --git a/composer.json b/composer.json
index f0b692f..f34dbc6 100644
--- a/composer.json
+++ b/composer.json
@@ -41,7 +41,7 @@
     "ext-curl": "*",
     "ext-openssl": "*",
     "oxid-esales/oxideshop-metapackage-ce": "~6.0.1",
-    "d3/modcfg": "~5.1.0.156"
+    "d3/modcfg": ">=5.1.0.156 <5.2"
   },
   "autoload": {
     "psr-4": {