diff --git a/src/mainboard/google/octopus/variants/ampton/overridetree.cb b/src/mainboard/google/octopus/variants/ampton/overridetree.cb
index 46d4dcdb22..b3f9416c80 100644
--- a/src/mainboard/google/octopus/variants/ampton/overridetree.cb
+++ b/src/mainboard/google/octopus/variants/ampton/overridetree.cb
@@ -12,8 +12,9 @@ chip soc/intel/apollolake
 		},
 		.i2c[5] = {
 			.speed = I2C_SPEED_FAST,
-			.rise_time_ns = 104,
-			.fall_time_ns = 52,
+			.rise_time_ns = 60,
+			.fall_time_ns = 20,
+			.data_hold_time_ns = 350,
 		},
 		.i2c[6] = {
 			.speed = I2C_SPEED_FAST,