diff --git a/app/api/schemas/risk.py b/app/api/schemas/risk.py
index c131f3d..0d60567 100644
--- a/app/api/schemas/risk.py
+++ b/app/api/schemas/risk.py
@@ -32,7 +32,7 @@ class RiskAlertPageQuery(BaseModel):
     start_time: datetime | None = None
     end_time: datetime | None = None
     cursor: str | None = Field(default=None, max_length=512)
-    limit: int = Field(default=5, ge=1, le=5)
+    limit: int = Field(default=10, ge=1, le=10)
 
     @field_validator("keyword", "customer_no", "product_code", "product_name", "rule_code")
     @classmethod
diff --git a/tests/unit/api/test_risk_controller.py b/tests/unit/api/test_risk_controller.py
index 5a7f67f..9606574 100644
--- a/tests/unit/api/test_risk_controller.py
+++ b/tests/unit/api/test_risk_controller.py
@@ -221,9 +221,13 @@ def test_overview_uses_success_envelope(monkeypatch) -> None:
 def test_alert_and_detail_routes_bind_parameters(monkeypatch) -> None:
     with authenticated_client(monkeypatch) as client:
         alerts = client.get("/api/v1/risk/alerts?limit=5&risk_level=高")
+        alerts_ten = client.get("/api/v1/risk/alerts?limit=10")
+        invalid = client.get("/api/v1/risk/alerts?limit=11")
         detail = client.get("/api/v1/risk/alerts/ALERT-001")
 
     assert alerts.status_code == 200
+    assert alerts_ten.status_code == 200
+    assert invalid.status_code == 422
     assert alerts.json()["data"][0]["alert_no"] == "ALERT-001"
     assert detail.status_code == 200
     assert detail.json()["data"]["alert"]["alert_no"] == "ALERT-001"
diff --git a/tests/unit/service/test_risk_query_service.py b/tests/unit/service/test_risk_query_service.py
index d49b613..010c77d 100644
--- a/tests/unit/service/test_risk_query_service.py
+++ b/tests/unit/service/test_risk_query_service.py
@@ -103,9 +103,10 @@ def test_cursor_round_trip_and_invalid_values() -> None:
 
 def test_query_schema_enforces_business_page_sizes() -> None:
     assert RiskAlertPageQuery(limit=5).limit == 5
+    assert RiskAlertPageQuery(limit=10).limit == 10
     assert RiskEvidencePageQuery(limit=10).limit == 10
     with pytest.raises(ValueError):
-        RiskAlertPageQuery(limit=6)
+        RiskAlertPageQuery(limit=11)
     with pytest.raises(ValueError):
         RiskEvidencePageQuery(limit=11)