diff --git a/buildenv b/buildenv
index 7bcbe3d..8b1681e 100644
--- a/buildenv
+++ b/buildenv
@@ -1,5 +1,5 @@
 # bump: lua-version /LUA_VERSION="(.*)"/ https://www.lua.org/ftp/|re:/lua-([\d.]+).tar.gz/$1/|semver:*
-LUA_VERSION="5.1.5"
+LUA_VERSION="5.4.7"
 
 export ZOPEN_BUILD_LINE="STABLE"
 # 5.1.5 is needed for Neovim
@@ -26,7 +26,7 @@ zopen_check_results()
   pfx="$2"
   chk="$1/$2_check.log"
 
-  grep -q "Hello world, from Lua 5.1!"  $chk
+  grep -q "Lua 5.4.7"  $chk
   failures=$?
   echo "actualFailures:$failures"
   echo "totalTests:1"
diff --git a/patches/Makefile.patch b/patches/Makefile.patch
index ade93d5..0d55712 100644
--- a/patches/Makefile.patch
+++ b/patches/Makefile.patch
@@ -1,45 +1,13 @@
 diff --git a/Makefile b/Makefile
-index 209a132..567bca9 100644
+index 72ca8ff..1f801e2 100644
 --- a/Makefile
 +++ b/Makefile
-@@ -38,7 +38,7 @@ RANLIB= ranlib
- # == END OF USER SETTINGS. NO NEED TO CHANGE ANYTHING BELOW THIS LINE =========
+@@ -36,7 +36,7 @@ RM= rm -f
+ # == END OF USER SETTINGS -- NO NEED TO CHANGE ANYTHING BELOW THIS LINE =======
  
  # Convenience platforms targets.
--PLATS= aix ansi bsd freebsd generic linux macosx mingw posix solaris
-+PLATS= aix ansi bsd freebsd generic linux macosx mingw posix solaris zos
+-PLATS= guess aix bsd c89 freebsd generic ios linux linux-readline macosx mingw posix solaris
++PLATS= guess aix bsd c89 freebsd generic ios linux linux-readline macosx mingw posix solaris zos
  
  # What to install.
  TO_BIN= lua luac
-diff --git a/src/Makefile b/src/Makefile
-index e0d4c9f..6f5761c 100644
---- a/src/Makefile
-+++ b/src/Makefile
-@@ -10,7 +10,7 @@ PLAT= none
- CC= gcc
- CFLAGS= -O2 -Wall $(MYCFLAGS)
- AR= ar rcu
--RANLIB= ranlib
-+RANLIB= echo
- RM= rm -f
- LIBS= -lm $(MYLIBS)
- 
-@@ -20,7 +20,7 @@ MYLIBS=
- 
- # == END OF USER SETTINGS. NO NEED TO CHANGE ANYTHING BELOW THIS LINE =========
- 
--PLATS= aix ansi bsd freebsd generic linux macosx mingw posix solaris
-+PLATS= aix ansi bsd freebsd generic linux macosx mingw posix solaris zos
- 
- LUA_A=	liblua.a
- CORE_O=	lapi.o lcode.o ldebug.o ldo.o ldump.o lfunc.o lgc.o llex.o lmem.o \
-@@ -95,6 +95,9 @@ freebsd:
- generic:
- 	$(MAKE) all MYCFLAGS=
- 
-+zos:
-+	$(MAKE) all MYCFLAGS="-DLUA_USE_POSIX -DLUA_USE_DLOPEN"
-+
- linux:
- 	$(MAKE) all MYCFLAGS=-DLUA_USE_LINUX MYLIBS="-Wl,-E -ldl -lreadline -lhistory -lncurses"
- 
diff --git a/patches/src/Makefile.patch b/patches/src/Makefile.patch
new file mode 100644
index 0000000..f7052d3
--- /dev/null
+++ b/patches/src/Makefile.patch
@@ -0,0 +1,32 @@
+diff --git a/src/Makefile b/src/Makefile
+index b771196..2f41a5a 100644
+--- a/src/Makefile
++++ b/src/Makefile
+@@ -12,7 +12,7 @@ LDFLAGS= $(SYSLDFLAGS) $(MYLDFLAGS)
+ LIBS= -lm $(SYSLIBS) $(MYLIBS)
+ 
+ AR= ar rcu
+-RANLIB= ranlib
++RANLIB= echo
+ RM= rm -f
+ UNAME= uname
+ 
+@@ -30,7 +30,7 @@ CMCFLAGS=
+ 
+ # == END OF USER SETTINGS -- NO NEED TO CHANGE ANYTHING BELOW THIS LINE =======
+ 
+-PLATS= guess aix bsd c89 freebsd generic ios linux linux-readline macosx mingw posix solaris
++PLATS= guess aix bsd c89 freebsd generic ios linux linux-readline macosx mingw posix solaris zos
+ 
+ LUA_A=	liblua.a
+ CORE_O=	lapi.o lcode.o lctype.o ldebug.o ldo.o ldump.o lfunc.o lgc.o llex.o lmem.o lobject.o lopcodes.o lparser.o lstate.o lstring.o ltable.o ltm.o lundump.o lvm.o lzio.o
+@@ -143,6 +143,9 @@ posix:
+ SunOS solaris:
+ 	$(MAKE) $(ALL) SYSCFLAGS="-DLUA_USE_POSIX -DLUA_USE_DLOPEN -D_REENTRANT" SYSLIBS="-ldl"
+ 
++zos:
++	$(MAKE) all MYCFLAGS="-DLUA_USE_POSIX -DLUA_USE_DLOPEN"
++
+ # Targets that do not create files (not all makes understand .PHONY).
+ .PHONY: all $(PLATS) help test clean default o a depend echo
+