diff --git a/libraries/tuttle/src/tuttle/host/version.hpp b/libraries/tuttle/src/tuttle/host/version.hpp
index c531333e1..a94848640 100644
--- a/libraries/tuttle/src/tuttle/host/version.hpp
+++ b/libraries/tuttle/src/tuttle/host/version.hpp
@@ -1,9 +1,10 @@
 #ifndef _TUTTLE_HOST_VERSION_HPP_
 #define _TUTTLE_HOST_VERSION_HPP_
 
+// This is more than the version of the host: this is the version of the 'tuttle bundle' (host + plugins + sam).
 #define TUTTLE_HOST_VERSION_MAJOR 0
 #define TUTTLE_HOST_VERSION_MINOR 13
-#define TUTTLE_HOST_VERSION_MICRO 0
+#define TUTTLE_HOST_VERSION_MICRO 3
 
 #define TUTTLE_HOST_VERSION_STR                                                                                             \
     BOOST_PP_STRINGIZE(TUTTLE_HOST_VERSION_MAJOR) "." BOOST_PP_STRINGIZE(TUTTLE_HOST_VERSION_MINOR) "." BOOST_PP_STRINGIZE(TUTTLE_HOST_VERSION_MICRO)