diff --git a/arch/riscv/boot/dts/thead/light-lpi4a-ref.dts b/arch/riscv/boot/dts/thead/light-lpi4a-ref.dts
index 9015b72b7..b20613631 100644
--- a/arch/riscv/boot/dts/thead/light-lpi4a-ref.dts
+++ b/arch/riscv/boot/dts/thead/light-lpi4a-ref.dts
@@ -194,7 +194,7 @@
 	fan: pwm-fan {
 		compatible = "pwm-fan";
 		#cooling-cells = <2>;
-		pwms = <&pwm 1 1000000 0>;
+		pwms = <&pwm 1 10000000 0>;
 		cooling-levels = <0 64 192 255>;
 	};