Update composer.json

yakeing · web-flow · commit 187259cce2a9 · 2019-08-19T19:48:25.000+08:00
diff --git a/composer.json b/composer.json
@@ -21,7 +21,7 @@
         "ext-session": "*"
     },
     "require-dev": {
-        "satooshi/php-coveralls":"*",
+        "satooshi/php-coveralls":"^ 2.1",
          "phpunit/phpunit": "5.7"
     },
     "extra":{
