diff --git a/src/main/java/app/coronawarn/quicktest/service/AntigenTestService.java b/src/main/java/app/coronawarn/quicktest/service/AntigenTestService.java
index 430aec12..ef64638f 100644
--- a/src/main/java/app/coronawarn/quicktest/service/AntigenTestService.java
+++ b/src/main/java/app/coronawarn/quicktest/service/AntigenTestService.java
@@ -101,7 +101,7 @@ private List<List<String>> createAntigenTestListFromCsvInputStream(InputStream i
                     .withSeparator(';')
                     .withIgnoreQuotations(true)
                     .build();
-            CSVReader csvReader = new CSVReaderBuilder(new InputStreamReader(inputStreamCsv, "UTF-8"))
+            CSVReader csvReader = new CSVReaderBuilder(new InputStreamReader(inputStreamCsv, "windows-1252"))
                     .withSkipLines(1)
                     .withCSVParser(parser)
                     .build();