diff --git a/.env.example b/.env.example
index 7cfda67..c335a2c 100644
--- a/.env.example
+++ b/.env.example
@@ -25,12 +25,12 @@ PGBOUNCER_VERSION=latest
 FORGEJO_VERSION=1.21.11-0
 
 # Observability Stack:
-PROMETHEUS_VERSION=v2.48.0
-GRAFANA_VERSION=10.2.2
-LOKI_VERSION=2.9.3
+PROMETHEUS_VERSION=v2.55.1
+GRAFANA_VERSION=11.4.0
+LOKI_VERSION=3.3.2
 VECTOR_VERSION=0.50.0-debian
-CADVISOR_VERSION=v0.47.2
-REDIS_EXPORTER_VERSION=v1.55.0
+CADVISOR_VERSION=v0.51.0
+REDIS_EXPORTER_VERSION=v1.67.0
 
 # ===========================================================================
 # HashiCorp Vault Configuration (Secrets Management & PKI)
diff --git a/tests/test-observability.sh b/tests/test-observability.sh
index 165bb13..7473854 100755
--- a/tests/test-observability.sh
+++ b/tests/test-observability.sh
@@ -233,14 +233,21 @@ test_vector_pipeline() {
         return 1
     fi
 
-    # Check Vector logs for pipeline initialization
-    if docker logs dev-vector 2>&1 | grep -q "Vector has started"; then
+    # Check Vector logs for pipeline initialization (supports both old and new Vector versions)
+    if docker logs dev-vector 2>&1 | grep -qE "(Vector has started|Started watching for container logs|component_type=docker_logs)"; then
         # Check if Vector is processing logs
         local log_count=$(docker logs dev-vector 2>&1 | wc -l)
         success "Vector pipeline active (container running, $log_count log lines)"
         return 0
     fi
 
+    # Also check if container is healthy as a fallback
+    if docker inspect --format='{{.State.Health.Status}}' dev-vector 2>/dev/null | grep -q "healthy"; then
+        local log_count=$(docker logs dev-vector 2>&1 | wc -l)
+        success "Vector pipeline active (container healthy, $log_count log lines)"
+        return 0
+    fi
+
     fail "Vector pipeline test failed" "Vector pipeline"
     return 1
 }