diff --git a/app/serialised_models.py b/app/serialised_models.py
index 1b17726f0..295b298ad 100644
--- a/app/serialised_models.py
+++ b/app/serialised_models.py
@@ -55,7 +55,7 @@ class SerialisedTemplate(SerialisedModel):
         return cls(cls.get_dict(template_id, service_id)['data'])
 
     @staticmethod
-    @redis_cache.set('template-{template_id}-version-None')
+    @redis_cache.set('service-{service_id}-template-{template_id}-version-None')
     def get_dict(template_id, service_id):
         from app.dao import templates_dao
         from app.schemas import template_schema
diff --git a/tests/app/v2/notifications/test_post_notifications.py b/tests/app/v2/notifications/test_post_notifications.py
index bdb33b7bc..5e3738155 100644
--- a/tests/app/v2/notifications/test_post_notifications.py
+++ b/tests/app/v2/notifications/test_post_notifications.py
@@ -264,7 +264,7 @@ def test_should_cache_template_and_service_in_redis(mocker, client, sample_templ
     )
 
     expected_service_key = f'service-{sample_template.service_id}'
-    expected_templates_key = f'template-{sample_template.id}-version-None'
+    expected_templates_key = f'service-{sample_template.service_id}-template-{sample_template.id}-version-None'
 
     assert mock_redis_get.call_args_list == [
         call(expected_service_key),