diff --git a/src/scripts/prepare-codex-ci-auth.test.ts b/src/scripts/prepare-codex-ci-auth.test.ts
index 25cbc50b750..644d9c1b2f2 100644
--- a/src/scripts/prepare-codex-ci-auth.test.ts
+++ b/src/scripts/prepare-codex-ci-auth.test.ts
@@ -32,10 +32,9 @@ describe("prepare-codex-ci-auth", () => {
     });
 
     expect(result.changed).toBe(true);
-    expect(decodeJwtPayload(String(result.auth.tokens?.id_token))).toMatchObject({
-      email: "peter@example.com",
-      chatgpt_account_id: "acct_123",
-    });
+    const payload = decodeJwtPayload(String(result.auth.tokens?.id_token));
+    expect(payload.email).toBe("peter@example.com");
+    expect(payload.chatgpt_account_id).toBe("acct_123");
   });
 
   it("leaves current auth metadata unchanged", () => {
@@ -77,10 +76,9 @@ describe("prepare-codex-ci-auth", () => {
       const updated = JSON.parse(await fs.readFile(authPath, "utf-8")) as {
         tokens?: { id_token?: string };
       };
-      expect(decodeJwtPayload(String(updated.tokens?.id_token))).toMatchObject({
-        sub: "user",
-        chatgpt_account_id: "acct_123",
-      });
+      const payload = decodeJwtPayload(String(updated.tokens?.id_token));
+      expect(payload.sub).toBe("user");
+      expect(payload.chatgpt_account_id).toBe("acct_123");
     });
   });
 });