diff --git a/MGX-restgpms/src/main/java/de/cebitec/mgx/restgpms/GPMSClient.java b/MGX-restgpms/src/main/java/de/cebitec/mgx/restgpms/GPMSClient.java
index 072f652..23e65b2 100644
--- a/MGX-restgpms/src/main/java/de/cebitec/mgx/restgpms/GPMSClient.java
+++ b/MGX-restgpms/src/main/java/de/cebitec/mgx/restgpms/GPMSClient.java
@@ -71,6 +71,7 @@
 import org.apache.http.impl.client.HttpClients;
 import org.apache.http.impl.conn.PoolingHttpClientConnectionManager;
 import org.apache.http.ssl.SSLContextBuilder;
+import org.jboss.resteasy.client.jaxrs.ClientHttpEngine;
 import org.jboss.resteasy.client.jaxrs.ResteasyClientBuilder;
 import org.jboss.resteasy.client.jaxrs.engines.ApacheHttpClient43Engine;
 import org.jboss.resteasy.client.jaxrs.internal.BasicAuthentication;
@@ -82,7 +83,7 @@
 public class GPMSClient implements GPMSClientI {
 
     //private final ClientConfig cc;
-    private ApacheHttpClient43Engine engine;
+    private ClientHttpEngine engine;
     private Client client;
     private WebTarget wt;
     private final String gpmsBaseURI;
diff --git a/MGX-restgpms/src/main/java/de/cebitec/mgx/restgpms/JAXRSRESTAccess.java b/MGX-restgpms/src/main/java/de/cebitec/mgx/restgpms/JAXRSRESTAccess.java
index ccc9675..9fe6b6d 100644
--- a/MGX-restgpms/src/main/java/de/cebitec/mgx/restgpms/JAXRSRESTAccess.java
+++ b/MGX-restgpms/src/main/java/de/cebitec/mgx/restgpms/JAXRSRESTAccess.java
@@ -45,6 +45,7 @@
 import org.apache.http.impl.client.HttpClients;
 import org.apache.http.impl.conn.PoolingHttpClientConnectionManager;
 import org.apache.http.ssl.SSLContextBuilder;
+import org.jboss.resteasy.client.jaxrs.ClientHttpEngine;
 import org.jboss.resteasy.client.jaxrs.ResteasyClientBuilder;
 import org.jboss.resteasy.client.jaxrs.engines.ApacheHttpClient43Engine;
 import org.jboss.resteasy.client.jaxrs.internal.BasicAuthentication;
@@ -58,7 +59,7 @@ public class JAXRSRESTAccess implements RESTAccessI {
     public final static String PROTOBUF_TYPE = "application/x-protobuf";
 
     private final Client client;
-    private final ApacheHttpClient43Engine engine;
+    private final ClientHttpEngine engine;
     private final WebTarget wt;
     private final int numRetriesAllowed = 5;
     private volatile boolean closed = false;