diff --git a/src/mainboard/google/guybrush/variants/baseboard/devicetree.cb b/src/mainboard/google/guybrush/variants/baseboard/devicetree.cb
index 20f286ecc1..84bdfcf206 100644
--- a/src/mainboard/google/guybrush/variants/baseboard/devicetree.cb
+++ b/src/mainboard/google/guybrush/variants/baseboard/devicetree.cb
@@ -27,7 +27,7 @@ chip soc/amd/cezanne
 		},
 
 		.io_mode = ESPI_IO_MODE_QUAD,
-		.op_freq_mhz = ESPI_OP_FREQ_16_MHZ,
+		.op_freq_mhz = ESPI_OP_FREQ_33_MHZ,
 		.crc_check_enable = 1,
 		.dedicated_alert_pin = 1,
 		.periph_ch_en = 1,