diff --git a/doc/Doxyfile b/doc/Doxyfile
index 09105644..193f63a4 100644
--- a/doc/Doxyfile
+++ b/doc/Doxyfile
@@ -5,7 +5,7 @@
 #---------------------------------------------------------------------------
 DOXYFILE_ENCODING = UTF-8
 PROJECT_NAME = libfluidsynth
-PROJECT_NUMBER = 2.1.3
+PROJECT_NUMBER = 2.1.4
 OUTPUT_DIRECTORY = api
 CREATE_SUBDIRS = NO
 OUTPUT_LANGUAGE = English