diff --git a/pom.xml b/pom.xml
index 00a5e3b90b85cfab5a34b5bd0ad0d2412b4efac0..3df1214b93d7b7e3099859b4814ee0e36e00c53f 100644
--- a/pom.xml
+++ b/pom.xml
@@ -19,7 +19,7 @@
<org.wildfly.version>35.0.1.Final</org.wildfly.version>
<org.drools.version>10.0.0</org.drools.version>
<javax.javaee.version>10.0.0</javax.javaee.version>
- <org.opensaml.version>5.0.0</org.opensaml.version>
+ <org.opensaml.version>5.1.4</org.opensaml.version>
<org.apache.velocity>2.4.1</org.apache.velocity>
<vt-ldap.version>3.3.9</vt-ldap.version>
<org.slf4j.version>1.7.2</org.slf4j.version>
diff --git a/regapp-saml/src/main/java/edu/kit/scc/webreg/service/saml/HttpSignableSoapClient.java b/regapp-saml/src/main/java/edu/kit/scc/webreg/service/saml/HttpSignableSoapClient.java
deleted file mode 100644
index f48d0b6b74e478ed67a2ab110ab273cc0719b707..0000000000000000000000000000000000000000
--- a/regapp-saml/src/main/java/edu/kit/scc/webreg/service/saml/HttpSignableSoapClient.java
+++ /dev/null
@@ -1,56 +0,0 @@
-/*******************************************************************************
- * Copyright (c) 2014 Michael Simon.
- * All rights reserved. This program and the accompanying materials
- * are made available under the terms of the GNU Public License v3.0
- * which accompanies this distribution, and is available at
- * http://www.gnu.org/licenses/gpl.html
- *
- * Contributors:
- * Michael Simon - initial
- ******************************************************************************/
-package edu.kit.scc.webreg.service.saml;
-
-import java.io.Serializable;
-
-import org.apache.hc.client5.http.classic.HttpClient;
-import org.opensaml.soap.client.http.HttpSOAPClient;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-
-import net.shibboleth.shared.xml.ParserPool;
-
-public class HttpSignableSoapClient extends HttpSOAPClient implements Serializable {
-
- private static final long serialVersionUID = 1L;
-
- private static Logger logger = LoggerFactory.getLogger(HttpSignableSoapClient.class);
-
- public HttpSignableSoapClient(HttpClient client, ParserPool parser) {
- super();
- setHttpClient(client);
- setParserPool(parser);
- }
-
-// @Override
-// protected RequestEntity createRequestEntity(Envelope message, Charset charset) throws SOAPClientException {
-// try {
-// Marshaller marshaller = Configuration.getMarshallerFactory().getMarshaller(message);
-// ByteArrayOutputStream arrayOut = new ByteArrayOutputStream();
-//
-// Element element = marshaller.marshall(message);
-// try {
-// Signer.signObject(signature);
-// } catch (SignatureException e) {
-// throw new SOAPClientException(e);
-// }
-//
-// if (logger.isDebugEnabled()) {
-// logger.debug("Outbound SOAP message is:\n" + SerializeSupport.prettyPrintXML(element));
-// }
-// SerializeSupport.writeNode(element, arrayOut);
-// return new ByteArrayRequestEntity(arrayOut.toByteArray(), "text/xml");
-// } catch (MarshallingException e) {
-// throw new SOAPClientException("Unable to marshall SOAP envelope", e);
-// }
-// }
-}