diff --git a/api.py b/api.py
index e657216..cb475a5 100644
--- a/api.py
+++ b/api.py
@@ -103,10 +103,17 @@ def root():
     }
 
 
-@app.get("/health")
+@app.api_route("/health", methods=["GET", "HEAD"])
 def health():
-    """Health check — sem autenticação."""
-    return {"status": "ok", "version": API_VERSION, "auth": is_auth_enabled()}
+    """Health check — sem autenticação. Suporta GET e HEAD (Docker Swarm)."""
+    from fastapi.responses import JSONResponse
+    return JSONResponse(
+        content={"status": "ok"},
+        headers={
+            "X-Api-Status": "ok",
+            "X-Api-Version": API_VERSION,
+        },
+    )
 
 
 # ── Endpoints Protegidos ────────────────────────────────────────────