diff --git a/VERSION b/VERSION
index 8848f96..459e4f6 100644
--- a/VERSION
+++ b/VERSION
@@ -1,2 +1,2 @@
-1.6.0
-2015-12-21
+1.6.1
+2016-03-22
diff --git a/configure.ac b/configure.ac
index 280a0d3..1f6ff5a 100644
--- a/configure.ac
+++ b/configure.ac
@@ -92,12 +92,12 @@
 
 # export library version info for mkfs/libf2fs_format_la
 AC_SUBST(FMT_CURRENT, 0)
-AC_SUBST(FMT_REVISION, 0)
+AC_SUBST(FMT_REVISION, 1)
 AC_SUBST(FMT_AGE, 0)
 
 # export library version info for lib/libf2fs_la
 AC_SUBST(LIBF2FS_CURRENT, 0)
-AC_SUBST(LIBF2FS_REVISION, 0)
+AC_SUBST(LIBF2FS_REVISION, 1)
 AC_SUBST(LIBF2FS_AGE, 0)
 
 AC_OUTPUT