diff --git a/app/notify_client/performance_dashboard_api_client.py b/app/notify_client/performance_dashboard_api_client.py
index c08734aff..e8800b321 100644
--- a/app/notify_client/performance_dashboard_api_client.py
+++ b/app/notify_client/performance_dashboard_api_client.py
@@ -3,7 +3,7 @@ from app.notify_client import NotifyAdminAPIClient, cache
 
 class PerformanceDashboardAPIClient(NotifyAdminAPIClient):
 
-    @cache.set('performance-stats-{start_date}-to-{end_date}')
+    @cache.set('performance-stats-{start_date}-to-{end_date}', ttl_in_seconds=3600)
     def get_performance_dashboard_stats(
         self,
         *,
diff --git a/tests/app/notify_client/test_performance_platform_api_client.py b/tests/app/notify_client/test_performance_platform_api_client.py
index dbdfbd6a1..5a68d743f 100644
--- a/tests/app/notify_client/test_performance_platform_api_client.py
+++ b/tests/app/notify_client/test_performance_platform_api_client.py
@@ -54,7 +54,7 @@ def test_sets_value_in_cache(mocker):
         call(
             'performance-stats-2021-01-01-to-2022-02-02',
             '{"data_from": "api"}',
-            ex=604800,
+            ex=3600,
         ),
     ]