diff --git a/package/libretro-prosystem/libretro-prosystem.mk b/package/libretro-prosystem/libretro-prosystem.mk
index 84dc41025e14ec3ec9e5bdeedc1f709bb636a368..c650501cc7822040b1ff01f6d77426779d909f50 100644
--- a/package/libretro-prosystem/libretro-prosystem.mk
+++ b/package/libretro-prosystem/libretro-prosystem.mk
@@ -5,7 +5,7 @@
 ################################################################################
 
 # Commit of 2023/08/17
-LIBRETRO_PROSYSTEM_VERSION = 4202ac5bdb2ce1a21f84efc0e26d75bb5aa7e248
+LIBRETRO_PROSYSTEM_VERSION = a639359434cde73e6cdc651763afc587c1afb678
 LIBRETRO_PROSYSTEM_SITE = $(call github,libretro,prosystem-libretro,$(LIBRETRO_PROSYSTEM_VERSION))
 LIBRETRO_PROSYSTEM_LICENSE = GPL-2.0
 LIBRETRO_PROSYSTEM_LICENSE_FILES = License.txt