diff --git a/scripts/makefile.nommx b/scripts/makefile.nommx
index 5348b85..d79cc72 100644
--- a/scripts/makefile.nommx
+++ b/scripts/makefile.nommx
@@ -16,7 +16,7 @@
 # Library name:
 LIBNAME = libpng14
 PNGMAJ = 1
-PNGMIN = 1.4.0beta23
+PNGMIN = 1.4.0beta24
 PNGVER = $(PNGMAJ).$(PNGMIN)
 
 # Shared library names: