diff --git a/composer.json b/composer.json
index 33bff08..9dbd149 100644
--- a/composer.json
+++ b/composer.json
@@ -42,6 +42,7 @@
     ],
     "license": "LGPL",
     "minimum-stability": "dev",
+    "prefer-stable": true,
     "name": "pear/spreadsheet_excel_writer",
     "support": {
         "issues": "http://pear.php.net/bugs/search.php?cmd=display&package_name[]=Spreadsheet_Excel_Writer",