diff --git a/Compatible-boards.md b/Compatible-boards.md
index 80dd8d0..f30fa8d 100644
--- a/Compatible-boards.md
+++ b/Compatible-boards.md
@@ -49,6 +49,6 @@ Require LoRa module pinout definitions in `config.h`:
 
 # Solder pad configuration
 - ESP-WROOM32 38pin
-![alt text](https://raw.githubusercontent.com/sh123/esp32_loraprs/master/images/esp32_38pin.png)
-![alt text](https://raw.githubusercontent.com/sh123/esp32_loraprs/master/images/solder_pads_38pin.png)
+![alt text](https://raw.githubusercontent.com/sh123/esp32_loraprs/master/images/esp32_38pin.jpg)
+![alt text](https://raw.githubusercontent.com/sh123/esp32_loraprs/master/images/solder_pads_38pin.jpg)