diff --git a/mk/main.mk b/mk/main.mk
index ec5deab5e24..c5b2fc8b953 100644
--- a/mk/main.mk
+++ b/mk/main.mk
@@ -18,7 +18,7 @@ CFG_RELEASE_NUM=1.0.0
 # An optional number to put after the label, e.g. '.2' -> '-beta.2'
 # NB Make sure it starts with a dot to conform to semver pre-release
 # versions (section 9)
-CFG_PRERELEASE_VERSION=.2
+CFG_PRERELEASE_VERSION=.3
 
 CFG_FILENAME_EXTRA=4e7c5e5c