diff --git a/src/agents/tools/pdf-tool.model-config.test.ts b/src/agents/tools/pdf-tool.model-config.test.ts
index 0184812aa610..bc9ce246dc2d 100644
--- a/src/agents/tools/pdf-tool.model-config.test.ts
+++ b/src/agents/tools/pdf-tool.model-config.test.ts
@@ -180,7 +180,7 @@ describe("resolvePdfModelConfigForTool", () => {
     } as OpenClawConfig;
 
     expect(resolvePdfModelConfigForTool({ cfg, agentDir: TEST_AGENT_DIR })).toEqual({
-      primary: "openai/gpt-5.4-mini",
+      primary: "openai/gpt-5.5",
       fallbacks: ["minimax/MiniMax-M2.7", "minimax-portal/MiniMax-M2.7"],
     });
   });