diff --git a/lib/utils/irqchip/plic.c b/lib/utils/irqchip/plic.c
index 7665c62e..70e89a64 100644
--- a/lib/utils/irqchip/plic.c
+++ b/lib/utils/irqchip/plic.c
@@ -94,7 +94,7 @@ int plic_cold_irqchip_init(struct plic_data *plic)
 
 	/* Configure default priorities of all IRQs */
 	for (i = 1; i <= plic->num_src; i++)
-		plic_set_priority(plic, i, 0);
+		plic_set_priority(plic, i, 1);
 
 	return 0;
 }