diff --git a/hw/ip/aes/data/aes.prj.hjson b/hw/ip/aes/data/aes.prj.hjson
index 2a653a3..ee5ab18 100644
--- a/hw/ip/aes/data/aes.prj.hjson
+++ b/hw/ip/aes/data/aes.prj.hjson
@@ -12,6 +12,6 @@
     life_stage:         "L1",
     design_stage:       "D2S",
     verification_stage: "V1",
-    dif_stage:          "S1",
+    dif_stage:          "S2",
     notes:              "",
 }