diff --git a/sys/riscv/riscv/plic.c b/sys/riscv/riscv/plic.c
index c400d944f223..f42ed109260d 100644
--- a/sys/riscv/riscv/plic.c
+++ b/sys/riscv/riscv/plic.c
@@ -5,8 +5,9 @@
  * All rights reserved.
  *
  * This software was developed by SRI International and the University of
- * Cambridge Computer Laboratory under DARPA/AFRL contract FA8750-10-C-0237
- * ("CTSRD"), as part of the DARPA CRASH research programme.
+ * Cambridge Computer Laboratory (Department of Computer Science and
+ * Technology) under DARPA contract HR0011-18-C-0016 ("ECATS"), as part of the
+ * DARPA SSITH research programme.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions