diff --git a/arch/riscv/boot/dts/spacemit/k1-milkv-jupiter.dts b/arch/riscv/boot/dts/spacemit/k1-milkv-jupiter.dts
index b61f5995ec77..c76b91ecb914 100644
--- a/arch/riscv/boot/dts/spacemit/k1-milkv-jupiter.dts
+++ b/arch/riscv/boot/dts/spacemit/k1-milkv-jupiter.dts
@@ -211,14 +211,14 @@ pmic@41 {
 		regulators {
 			buck1 {
 				regulator-min-microvolt = <500000>;
-				regulator-max-microvolt = <3450000>;
+				regulator-max-microvolt = <1050000>;
 				regulator-ramp-delay = <5000>;
 				regulator-always-on;
 			};
 
 			buck2 {
 				regulator-min-microvolt = <500000>;
-				regulator-max-microvolt = <3450000>;
+				regulator-max-microvolt = <1050000>;
 				regulator-ramp-delay = <5000>;
 				regulator-always-on;
 			};