diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 379984f0..85fbd302 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -26,6 +26,7 @@ build:
     # Build distribution archive
     - mkdir -p dist
     - tar -c --exclude-vcs --exclude-from .tarignore -vzf dist/openflexure-microscope-server-${CI_COMMIT_REF_NAME}.tar.gz .
+    - sha256sum dist/openflexure-microscope-server-${CI_COMMIT_REF_NAME}.tar.gz > dist/openflexure-microscope-server-${CI_COMMIT_REF_NAME}.tar.gz.sha256
 
   artifacts:
     name: "dist"