diff --git a/source/version.hpp b/source/version.hpp
index ded274cc..493735e9 100644
--- a/source/version.hpp
+++ b/source/version.hpp
@@ -2,4 +2,4 @@
 #define PROGRAM_MAJOR_VERSION 2021
 #define PROGRAM_MINOR_VERSION 1
 #define PROGRAM_SUBMINOR_VERSION 3
-#define PROGRAM_VERSION_REVISION 0
+#define PROGRAM_VERSION_REVISION 1