diff --git a/scripts/tests/test_monitoring_query_capacity.py b/scripts/tests/test_monitoring_query_capacity.py
index afd44a720..8b33e68c0 100644
--- a/scripts/tests/test_monitoring_query_capacity.py
+++ b/scripts/tests/test_monitoring_query_capacity.py
@@ -57,3 +57,16 @@ def test_quality_rollups_do_not_run_every_minute() -> None:
     quality = yaml.safe_load(manifest["data"]["platform-quality.yaml"])["groups"][0]
 
     assert quality["interval"] == "5m"
+
+
+def test_vmalert_reloads_updated_rule_files() -> None:
+    """Make Flux ConfigMap updates take effect without manual pod revision bumps."""
+    manifests = _documents(
+        REPO_ROOT / "services/monitoring/vmalert-atlas-availability.yaml"
+    )
+    deployment = next(
+        manifest for manifest in manifests if manifest.get("kind") == "Deployment"
+    )
+    args = deployment["spec"]["template"]["spec"]["containers"][0]["args"]
+
+    assert "-configCheckInterval=30s" in args
diff --git a/services/monitoring/vmalert-atlas-availability.yaml b/services/monitoring/vmalert-atlas-availability.yaml
index d1738fc1a..d387fa0b4 100644
--- a/services/monitoring/vmalert-atlas-availability.yaml
+++ b/services/monitoring/vmalert-atlas-availability.yaml
@@ -316,6 +316,7 @@ spec:
             - -datasource.queryStep=1h
             - -remoteWrite.url=http://victoria-metrics-single-server:8428
             - -rule=/etc/vmalert/rules/*.yaml
+            - -configCheckInterval=30s
             - -evaluationInterval=15m
             - -httpListenAddr=:8880
           ports: