diff --git a/.github/workflows/sync-cloud-run-env.yml b/.github/workflows/sync-cloud-run-env.yml
index 76b54e9..1b96bdc 100644
--- a/.github/workflows/sync-cloud-run-env.yml
+++ b/.github/workflows/sync-cloud-run-env.yml
@@ -376,10 +376,19 @@ jobs:
           scheduler="$(awk -F= '$1 == "scheduler" { print $2 }' "${BASELINE_PATH}")"
           iam="$(awk -F= '$1 == "iam" { print $2 }' "${BASELINE_PATH}")"
           revision_name="$(gcloud run services describe "${CLOUD_RUN_SERVICE}" --project="${GCP_PROJECT_ID}" --region="${CLOUD_RUN_REGION}" --format='value(status.latestCreatedRevisionName)')"
-          ready_revision="$(gcloud run services describe "${CLOUD_RUN_SERVICE}" --project="${GCP_PROJECT_ID}" --region="${CLOUD_RUN_REGION}" --format='value(status.latestReadyRevisionName)')"
           revision_sha="$(gcloud run revisions describe "${revision_name}" --project="${GCP_PROJECT_ID}" --region="${CLOUD_RUN_REGION}" --format='value(metadata.labels.commit-sha)')"
           revision_image="$(gcloud run revisions describe "${revision_name}" --project="${GCP_PROJECT_ID}" --region="${CLOUD_RUN_REGION}" --format='value(spec.containers.image)')"
-          [ "${revision_name}" = "${ready_revision}" ] || fail_readback "created revision is not ready"
+          revision_ready="False"
+          for _ in $(seq 1 30); do
+            revision_ready="$(
+              { gcloud run revisions describe "${revision_name}" --project="${GCP_PROJECT_ID}" --region="${CLOUD_RUN_REGION}" --format='json(status.conditions)' 2>/dev/null \
+                | python3 -c 'import json, sys; conditions = json.load(sys.stdin) or []; print("True" if any(isinstance(condition, dict) and condition.get("type") == "Ready" and condition.get("status") == "True" for condition in conditions) else "False")' 2>/dev/null; } \
+                || printf 'False'
+            )"
+            [ "${revision_ready}" = "True" ] && break
+            sleep 2
+          done
+          [ "${revision_ready}" = "True" ] || fail_readback "created revision did not become ready"
           [ "${revision_sha}" = "${EXPECTED_SHA}" ] || fail_readback "revision commit SHA mismatch"
           [[ "${revision_image}" == *"${EXPECTED_IMAGE_DIGEST}"* ]] || fail_readback "revision image digest mismatch"
           [ "${traffic}" = "$(active_traffic_digest)" ] || fail_readback "effective traffic changed"
diff --git a/tests/test_sync_cloud_run_env_workflow.py b/tests/test_sync_cloud_run_env_workflow.py
index 4995c4e..be04ba9 100644
--- a/tests/test_sync_cloud_run_env_workflow.py
+++ b/tests/test_sync_cloud_run_env_workflow.py
@@ -291,6 +291,12 @@ def test_sync_cloud_run_env_workflow_is_fail_closed_and_no_traffic_by_default():
     assert "Verify no-traffic deployment readback" in workflow
     assert "active_traffic_digest()" in workflow
     assert 'fail_readback "effective traffic changed"' in workflow
+    assert "latestReadyRevisionName" not in deploy_block
+    assert "for _ in $(seq 1 30); do" in deploy_block
+    assert "--format='json(status.conditions)'" in deploy_block
+    assert 'condition.get("type") == "Ready"' in deploy_block
+    assert 'condition.get("status") == "True"' in deploy_block
+    assert 'fail_readback "created revision did not become ready"' in deploy_block
     assert 'inputs.allow_configuration_sync }}" != "true"' in workflow
     assert 'inputs.allow_traffic_promotion == true' in workflow
     assert 'inputs.allow_cleanup == true' in workflow