diff --git a/mustang/src/main/java/org/mustangproject/ZUGFeRD/ZUGFeRDExporter.java b/mustang/src/main/java/org/mustangproject/ZUGFeRD/ZUGFeRDExporter.java
index 5a102821..9a15cd52 100644
--- a/mustang/src/main/java/org/mustangproject/ZUGFeRD/ZUGFeRDExporter.java
+++ b/mustang/src/main/java/org/mustangproject/ZUGFeRD/ZUGFeRDExporter.java
@@ -223,7 +223,7 @@ public class ZUGFeRDExporter implements Closeable {
 
 	// // MAIN CLASS
 	private String conformanceLevel = "U";
-	private String versionStr = "1.3.0";
+	private String versionStr = "1.4.0";
 
 	// BASIC, COMFORT etc - may be set from outside.
 	private String ZUGFeRDConformanceLevel = null;
diff --git a/mustang/src/test/java/org/mustangproject/ZUGFeRD/MustangReaderWriterTest.java b/mustang/src/test/java/org/mustangproject/ZUGFeRD/MustangReaderWriterTest.java
index 1942bf29..7f371f75 100644
--- a/mustang/src/test/java/org/mustangproject/ZUGFeRD/MustangReaderWriterTest.java
+++ b/mustang/src/test/java/org/mustangproject/ZUGFeRD/MustangReaderWriterTest.java
@@ -128,7 +128,7 @@ public class MustangReaderWriterTest extends TestCase implements IZUGFeRDExporta
   public IZUGFeRDExportableItem[] getZFItems()
   {
     Item[] allItems = new Item[3];
-    Product designProduct = new Product("", "Künstlerische Gestaltung (Stunde)", "HUR", new BigDecimal("7.000000"));
+    Product designProduct = new Product("", "Künstlerische Gestaltung (Stunde): Einer Beispielrechnung", "HUR", new BigDecimal("7.000000"));
     Product balloonProduct = new Product("", "Luftballon: Bunt, ca. 500ml", "C62", new BigDecimal("19.000000"));
     Product airProduct = new Product("", "Heiße Luft pro Liter", "LTR", new BigDecimal("19.000000"));
 
@@ -353,7 +353,7 @@ public class MustangReaderWriterTest extends TestCase implements IZUGFeRDExporta
   // //////// TESTS //////////////////////////////////////////////////////////////////////////////////////////
 
   /**
-   * The importer test imports from ./src/test/MustangGnuaccountingBeispielRE-20151008_504.pdf to check the values.
+   * The importer test imports from ./src/test/MustangGnuaccountingBeispielRE-20170509_505.pdf to check the values.
    * --> as only Name Ascending is supported for Test Unit sequence, I renamed the this test-A-Export to run before
    * testZExport
    *
diff --git a/mustang/src/test/resources/MustangGnuaccountingBeispielRE-20140703_502blanko.pdf b/mustang/src/test/resources/MustangGnuaccountingBeispielRE-20140703_502blanko.pdf
deleted file mode 100644
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diff --git a/mustang/src/test/resources/MustangGnuaccountingBeispielRE-20151008_504.odt b/mustang/src/test/resources/MustangGnuaccountingBeispielRE-20151008_504.odt
deleted file mode 100644
index 0aa6d02b..00000000
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diff --git a/mustang/src/test/resources/MustangGnuaccountingBeispielRE-20151008_504blanko.pdf b/mustang/src/test/resources/MustangGnuaccountingBeispielRE-20151008_504blanko.pdf
deleted file mode 100644
index 35c995db..00000000
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diff --git a/mustang/src/test/resources/MustangGnuaccountingBeispielRE-20151008_504.pdf b/mustang/src/test/resources/MustangGnuaccountingBeispielRE-20170509_505.pdf
similarity index 74%
rename from mustang/src/test/resources/MustangGnuaccountingBeispielRE-20151008_504.pdf
rename to mustang/src/test/resources/MustangGnuaccountingBeispielRE-20170509_505.pdf
index 1771974d..14976a45 100644
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diff --git a/mustang/src/test/resources/MustangGnuaccountingBeispielRE-20170509_505blanko.pdf b/mustang/src/test/resources/MustangGnuaccountingBeispielRE-20170509_505blanko.pdf
index ff1b4650..31404812 100644
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