diff --git a/server.js b/server.js
index 37fe35b..436bafa 100644
--- a/server.js
+++ b/server.js
@@ -1333,7 +1333,8 @@ fastify.get('/api/v1/apps/:app/runtime-status', async (request, reply) => {
         state = parts[2] || null;
         health = parts[3] || null;
       }
-      const stale = !!expectedSha && !!running_image_sha && expectedSha !== running_image_sha;
+      const stripSha = (s) => (s || '').replace(/^sha256:/, '');
+      const stale = !!expectedSha && !!running_image_sha && stripSha(expectedSha) !== stripSha(running_image_sha);
       if (stale) anyStale = true;
       out.push({ service: svc, container_id: containerId || null, expected_image_sha: expectedSha || null, running_image_sha, started_at, state, health, stale });
     }