1 files changed, 7 insertions, 6 deletions
diff --git a/src/client/react/components/container/WeekSelector.js b/src/client/react/components/container/WeekSelector.js
index c9174ca..eef8d8d 100644
--- a/src/client/react/components/container/WeekSelector.js
+++ b/src/client/react/components/container/WeekSelector.js
@@ -1,17 +1,18 @@
 import React from 'react';
 import PropTypes from 'prop-types';
 import moment from 'moment';
-import momentPropTypes from 'react-moment-proptypes';
 import queryString from 'query-string';
 import { withRouter } from 'react-router-dom';
 
+import purifyWeek from '../../lib/purifyWeek';
+
 const WeekSelector = ({ urlWeek, location, history }) => {
   const updateWeek = (change) => {
-    const newWeek = moment().week(urlWeek.week() + change);
-    const isCurrentWeek = moment().week() === newWeek.week();
+    const newWeek = purifyWeek(urlWeek + change);
+    const isCurrentWeek = moment().week() === newWeek;
 
     const query = queryString.stringify({
-      week: isCurrentWeek ? undefined : newWeek.week(),
+      week: isCurrentWeek ? undefined : newWeek,
     });
     history.push(`${location.pathname}?${query}`);
   };
@@ -19,14 +20,14 @@ const WeekSelector = ({ urlWeek, location, history }) => {
   return (
     <div>
       <button onClick={() => updateWeek(-1)}>Prev</button>
-      Week {urlWeek.week()}
+      Week {urlWeek}
       <button onClick={() => updateWeek(+1)}>Next</button>
     </div>
   );
 };
 
 WeekSelector.propTypes = {
-  urlWeek: momentPropTypes.momentObj.isRequired,
+  urlWeek: PropTypes.number.isRequired,
   history: PropTypes.shape({
     push: PropTypes.func.isRequired,
   }).isRequired,