diff --git a/tasks/version.mk b/tasks/version.mk
index 495dc91..bbcf78c 100644
--- a/tasks/version.mk
+++ b/tasks/version.mk
@@ -25,8 +25,11 @@ MKT_PROJECT_VERSION_COMMIT_TIMESTAMP ?= $(shell git show -s --format=%ct)
 MKT_PROJECT_VERSION_DATE ?= $(shell TZ=$(MKT_PROJECT_VERSION_TIMEZONE) date -d '@$(MKT_PROJECT_VERSION_COMMIT_TIMESTAMP)' +%Y.%-m.%-d)
 MKT_PROJECT_VERSION_TIMESTAMP ?= $(shell TZ=$(MKT_PROJECT_VERSION_TIMEZONE) date -d '@$(MKT_PROJECT_VERSION_COMMIT_TIMESTAMP)' +%-H%M)
 
-MKT_PROJECT_VERSION ?= $(MKT_PROJECT_VERSION_DATE)-$(MKT_PROJECT_VERSION_CHANNEL).$(MKT_PROJECT_VERSION_TIMESTAMP).$(shell git rev-parse --short HEAD)
-MKT_PROJECT_SHORT_VERSION ?= $(MKT_PROJECT_VERSION_DATE)-$(MKT_PROJECT_SHORT_VERSION_CHANNEL).$(MKT_PROJECT_VERSION_TIMESTAMP)
+MKT_PROJECT_VERSION := $(MKT_PROJECT_VERSION_DATE)-$(MKT_PROJECT_VERSION_CHANNEL).$(MKT_PROJECT_VERSION_TIMESTAMP).$(shell git rev-parse --short HEAD)
+MKT_PROJECT_SHORT_VERSION := $(MKT_PROJECT_VERSION_DATE)-$(MKT_PROJECT_SHORT_VERSION_CHANNEL).$(MKT_PROJECT_VERSION_TIMESTAMP)
+
+export MKT_PROJECT_VERSION
+export MKT_PROJECT_SHORT_VERSION
 
 .PHONY: mkt-project-version
 mkt-project-version: