diff --git a/implementations.md b/implementations.md
index b2eb879..dc17273 100644
--- a/implementations.md
+++ b/implementations.md
@@ -300,6 +300,11 @@ The "Promise Objects" section of the ECMAScript specification has many additiona
             <td>Tiny (590 bytes), with an even smaller micro version at 228 bytes (min + gzip)</td>
             <td>1.1</td>
         </tr>
+        <tr>
+            <td><a href="https://github.com/Xotic750/promise-x">@xotic750/promise-x</a></td>
+            <td>A Promise/A+ and ES2018 implementation.</td>
+            <td>1.1</td>
+        </tr>
         <tr>
             <td><a href="https://github.com/kriskowal/q">Q</a></td>
             <td>A tool for making and composing asynchronous promises in JavaScript</td>