diff --git a/Requirements.md b/Requirements.md
index 83dcaa3..ef41caa 100644
--- a/Requirements.md
+++ b/Requirements.md
@@ -3,6 +3,9 @@
   - PHP 5.6 (or higher) => (Read [this](RSS-Bridge-on-PHP-5.4) for PHP 5.4)
   - `openssl` extension
   - `libxml` extension (enabled by default, see [PHP Manual](http://php.net/manual/en/libxml.installation.php))
+  - `mbstring` extension
+  - `simplexml` extension
+  - `curl` extension
   - `allow_url_fopen` enabled (`On` or `1`)
 
 Enable extensions by un-commenting the corresponding line in your PHP configuration (`php.ini`).