diff --git a/composer.json b/composer.json
index 513483d..7ae4e54 100644
--- a/composer.json
+++ b/composer.json
@@ -23,6 +23,10 @@
             "*.xml.dist"
         ]
     },
+    "conflict": {
+        "symfony/process": "<4.4.44",
+        "symfony/var-exporter": "<4.4.44"
+    },
     "minimum-stability": "dev",
     "prefer-stable": true
 }