diff --git a/docs/en/hat/hat-env.md b/docs/en/hat/hat-env.md
index c99d6c83..e8e1c7a0 100644
--- a/docs/en/hat/hat-env.md
+++ b/docs/en/hat/hat-env.md
@@ -51,7 +51,7 @@
 ### Pin Map
 
 <table>
- <tr><td>M5StickC</td><td>GPIO0</td><td>GPIO26</td><td>5V</td><td>GND</td></tr>
+ <tr><td>M5StickC</td><td>GPIO0</td><td>GPIO26</td><td>3.3V</td><td>GND</td></tr>
  <tr><td>HAT ENV</td><td>SDA</td><td>SCL</td><td>3.3V</td><td>GND</td></tr>
 </table>