diff --git a/src/components/HistorySelect.jsx b/src/components/HistorySelect.jsx
index 92ecf5f..6a2d613 100644
--- a/src/components/HistorySelect.jsx
+++ b/src/components/HistorySelect.jsx
@@ -24,7 +24,7 @@ async function getTimes(day, canvasId) {
     const parsedTimes = times
       .map((a) => `${a.substr(0, 2)}:${a.substr(-2, 2)}`);
     return [
-      "00:00",
+      '00:00',
       ...parsedTimes,
     ];
   } catch {
diff --git a/src/core/constants.js b/src/core/constants.js
index 1068f1e..1cc9ba5 100644
--- a/src/core/constants.js
+++ b/src/core/constants.js
@@ -56,7 +56,7 @@ export const DEFAULT_CANVASES = {
     pcd: 7000,
     cds: 60000,
     req: -1,
-    sd: "2020-01-08",
+    sd: '2020-01-08',
   },
 };