diff --git a/.gitignore b/.gitignore
index bf27e38..8f7a316 100644
--- a/.gitignore
+++ b/.gitignore
@@ -4,3 +4,4 @@
 .project
 
 /.settings/
+.vscode/settings.json
diff --git a/pom.xml b/pom.xml
index b5fec4d..304e460 100644
--- a/pom.xml
+++ b/pom.xml
@@ -3,7 +3,7 @@
     <modelVersion>4.0.0</modelVersion>
     <groupId>nl.mpi.tla</groupId>
     <artifactId>SchemAnon</artifactId>
-    <version>1.1.0</version>
+    <version>1.1.1</version>
     <packaging>jar</packaging>
     <dependencies>
         <dependency>
@@ -14,7 +14,7 @@
         <dependency>
             <groupId>commons-io</groupId>
             <artifactId>commons-io</artifactId>
-            <version>2.4</version>
+            <version>2.11.0</version>
             <type>jar</type>
         </dependency>
         <dependency>
@@ -24,9 +24,25 @@
             <type>jar</type>
         </dependency>
         <dependency>
-            <groupId>xerces</groupId>
+            <groupId>org.exist-db.thirdparty.xerces</groupId>
             <artifactId>xercesImpl</artifactId>
-            <version>2.11.0-xml-schema-1.1-beta</version>
+            <version>2.12.0</version>
+            <classifier>xml-schema-1.1</classifier>
+            <scope>runtime</scope>
+        </dependency>
+
+        <!-- xpath2 and java-cup are needed at runtime
+                for xercesImpl Schema 1.1 support -->
+        <dependency>
+            <groupId>org.exist-db.thirdparty.org.eclipse.wst.xml</groupId>
+            <artifactId>xpath2</artifactId>
+            <version>1.2.0</version>
+            <scope>runtime</scope>
+        </dependency>
+        <dependency>
+            <groupId>edu.princeton.cup</groupId>
+            <artifactId>java-cup</artifactId>
+            <version>10k</version>
             <scope>runtime</scope>
         </dependency>
         <dependency>
diff --git a/src/main/java/nl/mpi/tla/schemanon/SchemAnon.java b/src/main/java/nl/mpi/tla/schemanon/SchemAnon.java
index e616010..d9554ca 100644
--- a/src/main/java/nl/mpi/tla/schemanon/SchemAnon.java
+++ b/src/main/java/nl/mpi/tla/schemanon/SchemAnon.java
@@ -20,6 +20,8 @@
 import java.io.IOException;
 import java.net.URL;
 import java.util.List;
+
+import javax.xml.XMLConstants;
 import javax.xml.transform.Source;
 import javax.xml.transform.stream.StreamSource;
 import javax.xml.validation.Schema;
@@ -219,7 +221,8 @@ private synchronized Schema getXSD() throws SchemAnonException, IOException {
             System.setProperty("javax.xml.validation.SchemaFactory:http://www.w3.org/2001/XMLSchema/v1.1",
                 "org.apache.xerces.jaxp.validation.XMLSchema11Factory");		
             try {
-                SchemaFactory sf = SchemaFactory.newInstance("http://www.w3.org/XML/XMLSchema/v1.1");
+                SchemaFactory sf = SchemaFactory.newInstance("http://www.w3.org/XML/XMLSchema/v1.1");//.newInstance(XMLConstants.W3C_XML_SCHEMA_NS_URI);
+                sf.setFeature("http://apache.org/xml/features/validation/cta-full-xpath-checking",true);
                 sf.setErrorHandler(new SimpleErrorHandler(msgList,true));
                 xsdSchema = sf.newSchema(srcSchema);
             } catch(Exception ex) {