diff --git a/push-container.nu b/push-container.nu
index b3c1c8f..1321ee0 100644
--- a/push-container.nu
+++ b/push-container.nu
@@ -29,7 +29,7 @@ def main [
          and
         (not ($env | get -i GITHUB_SHA | is-empty))
     ) {
-        $tags | append $"($env.GITHUB_RUN_NUMBER)-($env.GITHUB_SHA | str substring 0..8)"
+        $tags | append $"($env.GITHUB_RUN_NUMBER)-($env.GITHUB_SHA | str substring 0..7)"
     } else {
         $tags
     }