diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index e34bf39..c7d34bc 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -6,7 +6,7 @@ stages:
   - build
   - deploy-prod
 
-image: buildtool/build-tools:0.0.14
+image: buildtool/build-tools:${BUILDTOOLS_VERSION}
 services:
   - docker:dind