diff --git a/configure.ac b/configure.ac
index 9238e9a..dcad101 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1,5 +1,5 @@
 AC_PREREQ([2.69])
-AC_INIT([fuse-overlayfs], [1.13-dev], [giuseppe@scrivano.org])
+AC_INIT([fuse-overlayfs], [1.15-dev], [giuseppe@scrivano.org])
 AC_CONFIG_SRCDIR([main.c])
 AC_CONFIG_HEADERS([config.h])