diff --git a/CHANGELOG.md b/CHANGELOG.md
index a56c38fcf..219f40334 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -14,6 +14,10 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Added a semantic list structure to the header navigation
 - Added a default value for the `includeHistoricalData` attribute in the symbol data endpoint
 
+### Fixed
+
+- Fixed an issue with the date format parsing in the activities import
+
 ## 1.276.0 - 2023-06-03
 
 ### Added
diff --git a/apps/client/src/app/services/import-activities.service.ts b/apps/client/src/app/services/import-activities.service.ts
index 21ee38274..8e4d93342 100644
--- a/apps/client/src/app/services/import-activities.service.ts
+++ b/apps/client/src/app/services/import-activities.service.ts
@@ -223,16 +223,16 @@ export class ImportActivitiesService {
 
     for (const key of ImportActivitiesService.DATE_KEYS) {
       if (item[key]) {
-        if (isMatch(item[key], 'dd-MM-yyyy') && item[key].length === '10') {
+        if (isMatch(item[key], 'dd-MM-yyyy') && item[key].length === 10) {
           // Check length to only match yyyy (and not yy)
           date = parse(item[key], 'dd-MM-yyyy', new Date()).toISOString();
         } else if (
           isMatch(item[key], 'dd/MM/yyyy') &&
-          item[key].length === '10'
+          item[key].length === 10
         ) {
           // Check length to only match yyyy (and not yy)
           date = parse(item[key], 'dd/MM/yyyy', new Date()).toISOString();
-        } else if (isMatch(item[key], 'yyyyMMdd') && item[key].length === '8') {
+        } else if (isMatch(item[key], 'yyyyMMdd') && item[key].length === 8) {
           // Check length to only match yyyy (and not yy)
           date = parse(item[key], 'yyyyMMdd', new Date()).toISOString();
         } else {