diff --git a/configure.ac b/configure.ac
index 547d1bc..47998cc 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1,5 +1,5 @@
 AC_PREREQ(2.60)
-AC_INIT([tbstack], [0.1])
+AC_INIT([tbstack], [1.0])
 AM_INIT_AUTOMAKE([
 	foreign
 	1.11