diff --git a/picosim/srcsim/CMakeLists.txt b/picosim/srcsim/CMakeLists.txt
index 1b4ee392..3cd00b28 100644
--- a/picosim/srcsim/CMakeLists.txt
+++ b/picosim/srcsim/CMakeLists.txt
@@ -129,7 +129,7 @@ if(PICO_RP2040)
 else()
 	pico_set_program_description(${PROJECT_NAME} "z80pack on Raspberry Pi Pico 2")
 endif()
-pico_set_program_version(${PROJECT_NAME} "1.3")
+pico_set_program_version(${PROJECT_NAME} "1.5")
 pico_set_program_url(${PROJECT_NAME} "https://github.com/udo-munk/z80pack")
 
 # enable UART in/out, enable USB in/out
diff --git a/picosim/srcsim/sim.h b/picosim/srcsim/sim.h
index 7d5e6192..68c9b343 100644
--- a/picosim/srcsim/sim.h
+++ b/picosim/srcsim/sim.h
@@ -33,7 +33,7 @@
 #else
 #define USR_COM "Raspberry Pi Pico 2 Z80/8080 emulator"
 #endif
-#define USR_REL "1.3"
+#define USR_REL "1.5"
 #define USR_CPR "Copyright (C) 2024 by Udo Munk & Thomas Eberhardt"
 
 #ifndef PRIu64