diff --git a/samples/peripheral/lpuart/boards/nrf21540dk_nrf52840.overlay b/samples/peripheral/lpuart/boards/nrf21540dk_nrf52840.overlay
index 64a0726dc97..5e078327314 100644
--- a/samples/peripheral/lpuart/boards/nrf21540dk_nrf52840.overlay
+++ b/samples/peripheral/lpuart/boards/nrf21540dk_nrf52840.overlay
@@ -19,11 +19,11 @@
 	 * observed on nRF21540 v2.0.0 only (~450 uA more than on v1.0.0).
 	 */
 	group1 {
-		psels = <NRF_PSEL(UART_TX, 0, 20)>,
+		psels = <NRF_PSEL(UART_TX, 0, 6)>,
 			<NRF_PSEL_DISCONNECTED(UART_RTS)>;
 	};
 	group2 {
-		psels = <NRF_PSEL(UART_RX, 0, 22)>,
+		psels = <NRF_PSEL(UART_RX, 0, 8)>,
 			<NRF_PSEL_DISCONNECTED(UART_CTS)>;
 	};
 };
diff --git a/samples/peripheral/lpuart/boards/nrf52840dk_nrf52840.overlay b/samples/peripheral/lpuart/boards/nrf52840dk_nrf52840.overlay
index 3607890b53e..773f95138f8 100644
--- a/samples/peripheral/lpuart/boards/nrf52840dk_nrf52840.overlay
+++ b/samples/peripheral/lpuart/boards/nrf52840dk_nrf52840.overlay
@@ -23,11 +23,11 @@
 	 * observed on nRF52840 v3.0.0 only (~450 uA more then on v2.1.0).
 	 */
 	group1 {
-		psels = <NRF_PSEL(UART_TX, 0, 20)>,
+		psels = <NRF_PSEL(UART_TX, 0, 6)>,
 			<NRF_PSEL_DISCONNECTED(UART_RTS)>;
 	};
 	group2 {
-		psels = <NRF_PSEL(UART_RX, 0, 22)>,
+		psels = <NRF_PSEL(UART_RX, 0, 8)>,
 			<NRF_PSEL_DISCONNECTED(UART_CTS)>;
 	};
 };