diff --git a/configure.in b/configure.in
index f2082ba..894756a 100644
--- a/configure.in
+++ b/configure.in
@@ -3,7 +3,7 @@
 AC_CANONICAL_BUILD
 AC_CANONICAL_TARGET
 AC_PREREQ(2.53)
-AM_INIT_AUTOMAKE(asn1c, 0.9)
+AM_INIT_AUTOMAKE(asn1c, 0.9.1)
 
 AC_SUBST(PATH)