diff --git a/devices/wt32_eth01.yaml b/devices/wt32_eth01.yaml
index 411fa87..31f5bfb 100644
--- a/devices/wt32_eth01.yaml
+++ b/devices/wt32_eth01.yaml
@@ -3,12 +3,12 @@ i2c:
     sda: GPIO14
     scl: GPIO15
     scan: True
-    frequency: 100kHz
+    frequency: 400kHz
   - id: bus_b
     sda: GPIO17
     scl: GPIO33
     scan: True
-    frequency: 100kHz
+    frequency: 400kHz
 
 esphome:
   name: ${node_name}