diff --git a/build.gradle b/build.gradle
index 43fd477ab..3974979bd 100644
--- a/build.gradle
+++ b/build.gradle
@@ -31,7 +31,7 @@ subprojects {
       'guava': '29.0-jre',
       'jackson_databind': '2.15.1',
       'junit': '4.12',
-      'mockito': '2.5.7',
+      'mockito': '2.27.0',
       'slf4j': '1.7.36',
       'wiremock_jre': '2.35.0'
     ]
diff --git a/metafacture-javaintegration/src/main/java/org/metafacture/javaintegration/pojo/ComplexTypeEncoder.java b/metafacture-javaintegration/src/main/java/org/metafacture/javaintegration/pojo/ComplexTypeEncoder.java
index 3d32dde72..193928dbb 100644
--- a/metafacture-javaintegration/src/main/java/org/metafacture/javaintegration/pojo/ComplexTypeEncoder.java
+++ b/metafacture-javaintegration/src/main/java/org/metafacture/javaintegration/pojo/ComplexTypeEncoder.java
@@ -43,7 +43,7 @@ class ComplexTypeEncoder implements TypeEncoder {
 
     private static Object createInstance(final Class<?> clazz) {
         try {
-            return clazz.newInstance();
+            return clazz.getDeclaredConstructor().newInstance();
         }
         catch (final Exception e) { // checkstyle-disable-line IllegalCatch
             throw new MetafactureException("Can't instantiate object of class: " + clazz, e);
diff --git a/metafacture-xml/src/main/java/org/metafacture/xml/XmlDecoder.java b/metafacture-xml/src/main/java/org/metafacture/xml/XmlDecoder.java
index ff0dac5e3..1712c2771 100644
--- a/metafacture-xml/src/main/java/org/metafacture/xml/XmlDecoder.java
+++ b/metafacture-xml/src/main/java/org/metafacture/xml/XmlDecoder.java
@@ -29,10 +29,11 @@
 import org.xml.sax.SAXNotRecognizedException;
 import org.xml.sax.SAXNotSupportedException;
 import org.xml.sax.XMLReader;
-import org.xml.sax.helpers.XMLReaderFactory;
 
 import java.io.IOException;
 import java.io.Reader;
+import javax.xml.parsers.ParserConfigurationException;
+import javax.xml.parsers.SAXParserFactory;
 
 /**
  * Reads an XML file and passes the XML events to a receiver.
@@ -56,9 +57,12 @@ public final class XmlDecoder extends DefaultObjectPipe<Reader, XmlReceiver> {
      */
     public XmlDecoder() {
         try {
-            saxReader = XMLReaderFactory.createXMLReader();
+            final SAXParserFactory parserFactory = SAXParserFactory.newInstance();
+            parserFactory.setNamespaceAware(true);
+
+            saxReader = parserFactory.newSAXParser().getXMLReader();
         }
-        catch (final SAXException e) {
+        catch (final ParserConfigurationException | SAXException e) {
             throw new MetafactureException(e);
         }
     }