diff --git a/src/Composer/Util/Http/CurlDownloader.php b/src/Composer/Util/Http/CurlDownloader.php
index fe2f32af9..7e12870c6 100644
--- a/src/Composer/Util/Http/CurlDownloader.php
+++ b/src/Composer/Util/Http/CurlDownloader.php
@@ -150,7 +150,7 @@ class CurlDownloader
         curl_setopt($curlHandle, CURLOPT_FOLLOWLOCATION, false);
         //curl_setopt($curlHandle, CURLOPT_DNS_USE_GLOBAL_CACHE, false);
         curl_setopt($curlHandle, CURLOPT_CONNECTTIMEOUT, 10);
-        curl_setopt($curlHandle, CURLOPT_TIMEOUT, 60);
+        curl_setopt($curlHandle, CURLOPT_TIMEOUT, 300);
         curl_setopt($curlHandle, CURLOPT_WRITEHEADER, $headerHandle);
         curl_setopt($curlHandle, CURLOPT_FILE, $bodyHandle);
         curl_setopt($curlHandle, CURLOPT_ENCODING, "gzip");