diff --git a/pom.xml b/pom.xml
index 4a38aa8..c7f3700 100644
--- a/pom.xml
+++ b/pom.xml
@@ -36,7 +36,7 @@
         <maven.compiler.target>1.8</maven.compiler.target>
         <pac4j.version>4.3.1</pac4j.version>
         <jee-pac4j.version>5.0.0</jee-pac4j.version>
-        <grouper.version>2.6.0-SNAPSHOT</grouper.version>
+        <grouper.version>4.6.0</grouper.version>
     </properties>
 
     <dependencies>
@@ -196,8 +196,11 @@
                             *
                         </Import-Package>
                         -->
+                        <!-- line 1: oidc, line 2: saml startup, line 3: saml runtime -->
                         <Import-Package>
-                            sun.misc,org.osgi.framework,javax.servlet,javax.servlet.http,javax.net.ssl,javax.crypto,javax.xml,org.w3c.dom
+                            sun.misc,org.osgi.framework,javax.servlet,javax.servlet.http,javax.net.ssl,javax.crypto,javax.xml,org.w3c.dom,
+                            javax.xml.transform,javax.xml.namespace,org.xml.sax,javax.xml.parsers,javax.xml.validation,javax.xml.transform.stream,org.w3c.dom.ls,javax.xml.transform.dom,
+                            javax.xml.datatype
                         </Import-Package>
                         <!--
                         <Import-Package>