diff --git a/services/mana-research/src/providers/agent/gemini-grounding.ts b/services/mana-research/src/providers/agent/gemini-grounding.ts
index e290fa5a0..2f800cfe1 100644
--- a/services/mana-research/src/providers/agent/gemini-grounding.ts
+++ b/services/mana-research/src/providers/agent/gemini-grounding.ts
@@ -8,7 +8,7 @@
 import type { Citation, ResearchAgent } from '@mana/shared-research';
 import { ProviderError, ProviderNotConfiguredError } from '../../lib/errors';
 
-const DEFAULT_MODEL = 'gemini-2.0-flash';
+const DEFAULT_MODEL = 'gemini-2.5-flash';
 
 interface GeminiResponse {
 	candidates?: Array<{