diff --git a/front/src/modules/activities/hooks/useCompleteTask.ts b/front/src/modules/activities/hooks/useCompleteTask.ts
index e50d00f60..2e64597a2 100644
--- a/front/src/modules/activities/hooks/useCompleteTask.ts
+++ b/front/src/modules/activities/hooks/useCompleteTask.ts
@@ -1,11 +1,13 @@
 import { useCallback } from 'react';
 import { useApolloClient } from '@apollo/client';
+import { getOperationName } from '@apollo/client/utilities';
 
 import { Activity, useUpdateActivityMutation } from '~/generated/graphql';
 
 import { ACTIVITY_UPDATE_FRAGMENT } from '../graphql/fragments/activityUpdateFragment';
+import { GET_ACTIVITIES } from '../graphql/queries/getActivities';
 
-type Task = Pick<Activity, 'id'>;
+type Task = Pick<Activity, 'id' | 'completedAt'>;
 
 export function useCompleteTask(task: Task) {
   const [updateActivityMutation] = useUpdateActivityMutation();
@@ -33,6 +35,7 @@ export function useCompleteTask(task: Task) {
             completedAt,
           },
         },
+        refetchQueries: [getOperationName(GET_ACTIVITIES) ?? ''],
       });
     },
     [cachedTask, task.id, updateActivityMutation],