diff --git a/Makefile b/Makefile
index b219bb5e..4429f3d1 100644
--- a/Makefile
+++ b/Makefile
@@ -1,4 +1,4 @@
-VERSION_MATROSKA := 17
+VERSION_MATROSKA := 18
 VERSION_CODEC := 11
 VERSION_TAGS := 11
 VERSION_CHAPTER_CODECS := 03