diff --git a/tests/test_serp.py b/tests/test_serp.py
index e8ec9fe..0bef96e 100644
--- a/tests/test_serp.py
+++ b/tests/test_serp.py
@@ -252,6 +252,7 @@ def test_metadata():
                     "description": (
                         "Maximum number of result pages to visit per search query."
                     ),
+                    "minimum": 1,
                     "title": "Max Pages",
                     "type": "integer",
                 },
diff --git a/zyte_spider_templates/spiders/serp.py b/zyte_spider_templates/spiders/serp.py
index cbf9554..b30750c 100644
--- a/zyte_spider_templates/spiders/serp.py
+++ b/zyte_spider_templates/spiders/serp.py
@@ -43,6 +43,7 @@ class SerpMaxPagesParam(BaseModel):
     max_pages: int = Field(
         title="Max Pages",
         description="Maximum number of result pages to visit per search query.",
+        ge=1,
         default=1,
     )