diff --git a/server/routes/updates.ts b/server/routes/updates.ts
index bab5805..c302047 100644
--- a/server/routes/updates.ts
+++ b/server/routes/updates.ts
@@ -120,6 +120,9 @@ router.get('/docker', async (_req, res) => {
     return
   }
 
+  const cached = fromCache<{ containers: ContainerInfo[] }>('docker:full', HUB_TTL)
+  if (cached) { res.json(cached); return }
+
   try {
     const headers = portainerHeaders()
 
@@ -183,7 +186,9 @@ router.get('/docker', async (_req, res) => {
       }
     }
 
-    res.json({ containers })
+    const result = { containers }
+    toCache('docker:full', result)
+    res.json(result)
   } catch (err: unknown) {
     const msg = err instanceof Error ? err.message : 'Unknown error'
     res.status(500).json({ error: msg })