diff --git a/library/src/main/java/org/mustangproject/ZUGFeRD/ZUGFeRDExporterFromA3.java b/library/src/main/java/org/mustangproject/ZUGFeRD/ZUGFeRDExporterFromA3.java
index 0b59b7fd..9925310c 100644
--- a/library/src/main/java/org/mustangproject/ZUGFeRD/ZUGFeRDExporterFromA3.java
+++ b/library/src/main/java/org/mustangproject/ZUGFeRD/ZUGFeRDExporterFromA3.java
@@ -673,7 +673,7 @@ public class ZUGFeRDExporterFromA3 extends XRExporter implements IZUGFeRDExporte
 		}
 
 		PDFAttachGenericFile(doc, filename, relationship,
-			"Invoice metadata conforming to ZUGFeRD standard (http://www.ferd-net.de/front_content.php?idcat=231&lang=4)",
+			"Invoice metadata conforming to ZUGFeRD standard (https://www.ferd-net.de/en/standards/zugferd/factur-x)",
 			"text/xml", xmlProvider.getXML());
 
 		for (FileAttachment attachment : fileAttachments) {
diff --git a/library/src/test/resources/MustangBeispiel20221026.pdf b/library/src/test/resources/MustangBeispiel20221026.pdf
index cb86a426..0be6aa95 100644
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diff --git a/library/src/test/resources/MustangGnuaccountingBeispielRE-20170509_505.pdf b/library/src/test/resources/MustangGnuaccountingBeispielRE-20170509_505.pdf
index d2bcf218..8d7376a1 100644
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diff --git a/validator/src/test/resources/XMLinvalidV2PDF.pdf b/validator/src/test/resources/XMLinvalidV2PDF.pdf
index cd6fb11a..a82e9c9b 100644
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diff --git a/validator/src/test/resources/corruptedV2PDF.pdf b/validator/src/test/resources/corruptedV2PDF.pdf
index 71b784fc..7cf000fe 100644
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diff --git a/validator/src/test/resources/invalidPDF.pdf b/validator/src/test/resources/invalidPDF.pdf
index 1dbd238a..780d609d 100644
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diff --git a/validator/src/test/resources/invalidXMP-ParseError.pdf b/validator/src/test/resources/invalidXMP-ParseError.pdf
index 838b1a8a..f34074f9 100644
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diff --git a/validator/src/test/resources/invalidXMP.pdf b/validator/src/test/resources/invalidXMP.pdf
index c90547f5..3d80518d 100644
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diff --git a/validator/src/test/resources/invalidXRechnung.pdf b/validator/src/test/resources/invalidXRechnung.pdf
index 8ce81ee1..9520a7db 100644
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diff --git a/validator/src/test/resources/validV2PDF.pdf b/validator/src/test/resources/validV2PDF.pdf
index 65761391..5252b74a 100644
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diff --git a/validator/src/test/resources/validXRechnung.pdf b/validator/src/test/resources/validXRechnung.pdf
index 9c9ecff2..b3d4ce9a 100644
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