diff --git a/public/dev/lib/chart.js/Chart.bundle.js b/public/dev/lib/chart.js/Chart.bundle.js
index db74e2fef..6e6ac8c70 100644
--- a/public/dev/lib/chart.js/Chart.bundle.js
+++ b/public/dev/lib/chart.js/Chart.bundle.js
@@ -3942,7 +3942,7 @@ function untruncateYear(yearStr) {
 
 function preprocessRFC2822(s) {
     // Remove comments and folding whitespace and replace multiple-spaces with a single space
-    return s.replace(/\([^)]*\)|[\n\t]/g, ' ').replace(/(\s\s+)/g, ' ').trim();
+    return s.replace(/\([^()]*\)|[\n\t]/g, " ").replace(/(\s\s+)/g, ' ').trim();
 }
 
 function checkWeekday(weekdayStr, parsedInput, config) {