diff --git a/src/main.cpp b/src/main.cpp
index b37008c5e..68b6dca79 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -57,7 +57,7 @@
 #include <sys/ioctl.h>
 #include "keyboard.h"
 
-static const char __ver[40] = "$VER: Amiberry 4.1.5 RC3 (2021-09-07)";
+static const char __ver[40] = "$VER: Amiberry 4.1.5 RC4 (2021-09-15)";
 long int version = 256 * 65536L * UAEMAJOR + 65536L * UAEMINOR + UAESUBREV;
 
 struct uae_prefs currprefs, changed_prefs;
diff --git a/src/osdep/target.h b/src/osdep/target.h
index 14843820a..9243eff40 100644
--- a/src/osdep/target.h
+++ b/src/osdep/target.h
@@ -24,8 +24,8 @@
 #define GETBDM(x) (((x) - (((x) / 10000) * 10000)) / 100)
 #define GETBDD(x) ((x) % 100)
 
-#define AMIBERRYVERSION _T("Amiberry v4.1.5 RC3 (2021-09-07)")
-#define AMIBERRYDATE MAKEBD(2021, 9, 07)
+#define AMIBERRYVERSION _T("Amiberry v4.1.5 RC4 (2021-09-15)")
+#define AMIBERRYDATE MAKEBD(2021, 9, 15)
 
 #define IHF_WINDOWHIDDEN 6