diff --git a/scripts/ci-run.sh b/scripts/ci-run.sh
index 2451d87..4f68bb2 100755
--- a/scripts/ci-run.sh
+++ b/scripts/ci-run.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/bin/sh
 # ci-run.sh — CoreCI pipeline runner for orca.
 # Called by .coreci.yml jobs via: sh scripts/ci-run.sh <job-name>
 #
@@ -10,8 +10,11 @@
 #   CI_COMMIT_BRANCH — tag name on tag pushes (from GITHUB_REF_NAME)
 #   CI_COMMIT_SHA    — commit SHA
 #   GITEA_TOKEN      — Gitea API token (from Gitea Actions secret PAT_TOKEN)
+#
+# NOTE: uses #!/bin/sh — do NOT use bash-only features (pipefail, [[ ]], etc.)
+# The Gitea Actions runner uses dash as /bin/sh.
 
-set -uo pipefail
+set -u
 
 JOB="${1:-}"
 if [ -z "$JOB" ]; then