diff --git a/composer.json b/composer.json
index 35c074d..5fde3bb 100644
--- a/composer.json
+++ b/composer.json
@@ -24,14 +24,14 @@
         }
     ],
     "require":           {
-        "php":                      "^5.5|^7.0",
+        "php":                      "^5.5 || ^7.0",
         "psr/cache":                "^1.0",
         "cache/adapter-common":     "^0.3",
         "cache/hierarchical-cache": "^0.2",
         "cache/taggable-cache":     "^0.4"
     },
     "require-dev":       {
-        "phpunit/phpunit":         "^4.0|^5.1",
+        "phpunit/phpunit":         "^4.0 || ^5.1",
         "cache/integration-tests": "^0.10"
     },
     "provide":           {