diff --git a/Justfile b/Justfile
index e204085..24ea94e 100644
--- a/Justfile
+++ b/Justfile
@@ -13,7 +13,7 @@ docker-run:
     docker run --env OPENAI_API_KEY --publish 8080:8080 "$(just docker-build-quiet)"
 
 deploy:
-    fly deploy --build-arg
+    fly deploy --build-arg COMMIT_SHA="{{COMMIT_SHA}}"
 
 logs:
     fly logs