diff --git a/configure.ac b/configure.ac
index 7d8324f5..e2005cc5 100644
--- a/configure.ac
+++ b/configure.ac
@@ -24,8 +24,8 @@
 
 # Autoconf
 AC_PREREQ(2.59)
-AC_INIT([ntfs-3g],[2017.3.23],[ntfs-3g-devel@lists.sf.net])
-LIBNTFS_3G_VERSION="88"
+AC_INIT([ntfs-3g],[2021.5.19],[ntfs-3g-devel@lists.sf.net])
+LIBNTFS_3G_VERSION="89"
 AC_CONFIG_SRCDIR([src/ntfs-3g.c])
 
 # Environment