diff --git a/Makefile b/Makefile
index aa680ff..3c3190f 100644
--- a/Makefile
+++ b/Makefile
@@ -15,7 +15,7 @@ REPO = dev
 BRIEF = Generate configuration scripts
 DESC = Autoconf is an extensible package of M4 macros that produce shell \
 scripts to automatically configure software source code packages.
-SLVER = 2
+SLVER = 4
 
 ARCHIVE := $(PWD)/SRC/$(shell ls SRC|egrep '(bz2|gz|tar|xz)$$'|tail -1)
 TYPE := $(shell file -ib $(ARCHIVE)|cut -d';' -f1|tr -d '\n')