diff --git a/src/servala/core/crd/forms.py b/src/servala/core/crd/forms.py
index b022a5e..188ce3e 100644
--- a/src/servala/core/crd/forms.py
+++ b/src/servala/core/crd/forms.py
@@ -371,11 +371,13 @@ class CustomFormMixin(FormGeneratorMixin):
 
                     validators = []
                     if min_val is not None:
-                        validators.append(MinValueValidator(min_val))
-                        field.widget.attrs["min"] = min_val
+                        with suppress(ValueError):
+                            validators.append(MinValueValidator(int(min_val)))
+                            field.widget.attrs["min"] = min_val
                     if max_val is not None:
-                        validators.append(MaxValueValidator(max_val))
-                        field.widget.attrs["max"] = max_val
+                        with suppress(ValueError):
+                            validators.append(MaxValueValidator(int(max_val)))
+                            field.widget.attrs["max"] = max_val
 
                     if validators:
                         field.validators.extend(validators)
diff --git a/src/tests/test_form_config.py b/src/tests/test_form_config.py
index c93f3fb..25f1bf2 100644
--- a/src/tests/test_form_config.py
+++ b/src/tests/test_form_config.py
@@ -1055,6 +1055,59 @@ def test_empty_values_dont_override_default_configs():
     assert name_field.required is False  # Was overridden by explicit False
 
 
+def test_number_field_validates_min_max_values():
+
+    class TestModel(models.Model):
+        name = models.CharField(max_length=100)
+        port = models.IntegerField()
+
+        class Meta:
+            app_label = "test"
+
+    form_config = {
+        "fieldsets": [
+            {
+                "title": "General",
+                "fields": [
+                    {
+                        "type": "text",
+                        "label": "Name",
+                        "controlplane_field_mapping": "name",
+                        "required": True,
+                    },
+                    {
+                        "type": "number",
+                        "label": "Port",
+                        "controlplane_field_mapping": "port",
+                        "required": True,
+                        "min_value": "1",
+                        "max_value": "65535",
+                    },
+                ],
+            }
+        ]
+    }
+
+    form_class = generate_custom_form_class(form_config, TestModel)
+
+    # Test value below minimum fails validation
+    form = form_class(data={"name": "test-service", "port": 0})
+    form.fields["context"].required = False
+    assert not form.is_valid()
+    assert "port" in form.errors
+
+    # Test value above maximum fails validation
+    form = form_class(data={"name": "test-service", "port": 65536})
+    form.fields["context"].required = False
+    assert not form.is_valid()
+    assert "port" in form.errors
+
+    # Test valid value passes validation
+    form = form_class(data={"name": "test-service", "port": 8080})
+    form.fields["context"].required = False
+    assert form.is_valid(), f"Form should be valid but has errors: {form.errors}"
+
+
 def test_number_field_with_addon_text_roundtrip():
     class TestModel(models.Model):
         name = models.CharField(max_length=100)