diff --git a/ui/v2.5/src/components/List/ListFilter.tsx b/ui/v2.5/src/components/List/ListFilter.tsx
index 52a0cf44c..1b6237aeb 100644
--- a/ui/v2.5/src/components/List/ListFilter.tsx
+++ b/ui/v2.5/src/components/List/ListFilter.tsx
@@ -24,6 +24,7 @@ import { FormattedMessage, useIntl } from "react-intl";
 import { PersistanceLevel } from "src/hooks/ListHook";
 import { SavedFilterList } from "./SavedFilterList";
 
+const maxPageSize = 1000;
 interface IListFilterProps {
   onFilterUpdate: (newFilter: ListFilterModel) => void;
   filter: ListFilterModel;
@@ -90,11 +91,16 @@ export const ListFilter: React.FC<IListFilterProps> = ({
 
     setCustomPageSizeShowing(false);
 
-    const pp = parseInt(val, 10);
+    let pp = parseInt(val, 10);
     if (Number.isNaN(pp) || pp <= 0) {
       return;
     }
 
+    // don't allow page sizes over 1000
+    if (pp > maxPageSize) {
+      pp = maxPageSize;
+    }
+
     const newFilter = _.cloneDeep(filter);
     newFilter.itemsPerPage = pp;
     newFilter.currentPage = 1;
@@ -334,6 +340,7 @@ export const ListFilter: React.FC<IListFilterProps> = ({
                   <Form.Control
                     type="number"
                     min={1}
+                    max={maxPageSize}
                     className="text-input"
                     ref={perPageInput}
                     onKeyPress={(e: React.KeyboardEvent<HTMLInputElement>) => {