diff --git a/source/version.hpp b/source/version.hpp
index 7a1f9375..8de009ed 100644
--- a/source/version.hpp
+++ b/source/version.hpp
@@ -1,5 +1,5 @@
 #pragma once
 #define PROGRAM_MAJOR_VERSION 2021
 #define PROGRAM_MINOR_VERSION 4
-#define PROGRAM_SUBMINOR_VERSION 19
-#define PROGRAM_VERSION_REVISION 1
+#define PROGRAM_SUBMINOR_VERSION 21
+#define PROGRAM_VERSION_REVISION 0