diff --git a/drivers/flash/nrf_qspi_nor.c b/drivers/flash/nrf_qspi_nor.c
index 159fee9ccee..961a7f63b36 100644
--- a/drivers/flash/nrf_qspi_nor.c
+++ b/drivers/flash/nrf_qspi_nor.c
@@ -43,7 +43,7 @@ struct qspi_nor_config {
 LOG_MODULE_REGISTER(qspi_nor, CONFIG_FLASH_LOG_LEVEL);
 
 static const struct flash_parameters qspi_flash_parameters = {
-	.write_block_size = 1,
+	.write_block_size = 4,
 	.erase_value = 0xff,
 };