diff --git a/README.md b/README.md
index 1d889b0..c92f75e 100644
--- a/README.md
+++ b/README.md
@@ -7,9 +7,7 @@ Han port pinout:
 5. DATA (TX 115200 inverted)
 6. GND
 
-Add voltage divider to Pico RX pin:
-- 10k between pico RX pin and GND
-- 10k between HAN pin 5 and pico RX pin
+Add pullup resistor between Pico RX pin and 3V3
 
 ![front](20220814_231222.MEDIUM.jpeg)
 ![back](20220814_231229.MEDIUM.jpeg)