diff --git a/src/main/java/com/gepardec/wdg/application/validation/Base64LengthValidator.java b/src/main/java/com/gepardec/wdg/application/validation/Base64LengthValidator.java
index 74985bf..a5bb2fa 100644
--- a/src/main/java/com/gepardec/wdg/application/validation/Base64LengthValidator.java
+++ b/src/main/java/com/gepardec/wdg/application/validation/Base64LengthValidator.java
@@ -27,7 +27,9 @@ public boolean isValid(String value, ConstraintValidatorContext context) {
         final long length = value.length();
         final long padding = calculatePadding(value);
         final long size = (long) ((double) length * 0.75) - padding;
+        //Ändern des <= auf ein >= um so einen Test auszulösen der fehlschlägt.
         return (size >= minLength && size <= maxLength);
+        //return (size >= minLength && size >= maxLength);
     }
 
     private long calculatePadding(String value) {
diff --git a/src/main/java/com/gepardec/wdg/application/validation/Base64Validator.java b/src/main/java/com/gepardec/wdg/application/validation/Base64Validator.java
index 714dce9..0d6da64 100644
--- a/src/main/java/com/gepardec/wdg/application/validation/Base64Validator.java
+++ b/src/main/java/com/gepardec/wdg/application/validation/Base64Validator.java
@@ -12,7 +12,7 @@ public class Base64Validator implements ConstraintValidator<Base64, String> {
     /**
      * Base64 validation regular expression.
      */
-    private static final Pattern BASE64_PATTERN = Pattern.compile("^([A-Za-z0-9+/]{4})*([A-Za-z0-9+/]{4}|[A-Za-z0-9+/]{3}=|[A-Za-z0-9+/]{2}==)?$");
+    private static final Pattern BASE64_PATTERN = Pattern.compile("^([A-Za-z0-9+/]{4})*([A-Za-z0-9+/]{4}|[A-Ga-z0-9+/]{3}=|[A-Za-z0-9+/]{2}==)?$");
 
     @Override
     public boolean isValid(String value, ConstraintValidatorContext context) {
diff --git a/src/test/java/com/gepardec/wdg/application/validation/Base64ValidatorTest.java b/src/test/java/com/gepardec/wdg/application/validation/Base64ValidatorTest.java
index 53d466f..76ac2f1 100644
--- a/src/test/java/com/gepardec/wdg/application/validation/Base64ValidatorTest.java
+++ b/src/test/java/com/gepardec/wdg/application/validation/Base64ValidatorTest.java
@@ -37,7 +37,7 @@ void isValid_withPadding0_thenTrue() {
         final String base64 = createBase64StringForPadding(0);
         Assertions.assertTrue(validator.isValid(base64, null));
     }
-
+    //@WINStage2: Test isValid_withPadding1_thenTruealse() will fail because of a broken CodePart
     @Test
     void isValid_withPadding1_thenTruealse() {
         final String base64 = createBase64StringForPadding(1);