compatibility with symfony components 5.0

Author: mwr

composer.json

@@ -17,9 +17,9 @@
         "php": "~7.0.0|~7.1.0|~7.2.0|~7.3.0|~7.4.0",
         "ext-json": "*",
         "guzzlehttp/guzzle": "~6.3",
-        "symfony/serializer": "~3.3|~4.0",
-        "symfony/property-info": "~3.4.0|~4.0",
-        "symfony/property-access": "~3.4|~4.0"
+        "symfony/serializer": "~3.3|~4.0|~5.0",
+        "symfony/property-info": "~3.4.0|~4.0|~5.0",
+        "symfony/property-access": "~3.4|~4.0|~5.0"
     },
     "autoload": {
         "psr-4": {