diff --git a/application.c b/application.c
index c9257ba..c444076 100644
--- a/application.c
+++ b/application.c
@@ -246,6 +246,13 @@ static void command_version(void* argument)
 		case 0x419:
 			puts("STM32F42x/STM32F43x");
 			break;
+		// from RM0368
+		case 0x423:
+			puts("STM32F401xB/C");
+			break;
+		case 0x433:
+			puts("STM32F401xD/E");
+			break;
 		default:
 			puts("unknown");
 			fake = true;