diff --git a/source/org/otherone/vhostproxy/vertx/config.ceylon b/source/org/otherone/vhostproxy/vertx/config.ceylon
index ccc72f9..10fe4ba 100644
--- a/source/org/otherone/vhostproxy/vertx/config.ceylon
+++ b/source/org/otherone/vhostproxy/vertx/config.ceylon
@@ -1,3 +1,9 @@
+import ceylon.buffer.base {
+    base64StringStandard
+}
+import ceylon.buffer.charset {
+    iso_8859_1
+}
 import ceylon.collection {
     HashMap,
     HashSet
@@ -6,12 +12,6 @@ import ceylon.file {
     parsePath,
     File
 }
-import ceylon.io.base64 {
-    decode
-}
-import ceylon.io.buffer {
-    newByteBufferWithData
-}
 
 import io.netty.handler.codec.http {
     HttpHeaders {
@@ -85,7 +85,7 @@ Null reject(HttpServerRequest sreq, Integer status, String statusMsg) {
 }
 
 String decodeBase64(String s) {
-    return String(decode(newByteBufferWithData(*(s.map((ch) => ch.integer.byte)))).map((Byte b) => b.unsigned.character));
+    return iso_8859_1.decode(base64StringStandard.decode(s));
 }
 
 String extractHosname(String hostHeader) {
diff --git a/source/org/otherone/vhostproxy/vertx/module.ceylon b/source/org/otherone/vhostproxy/vertx/module.ceylon
index 13ab032..69ae903 100644
--- a/source/org/otherone/vhostproxy/vertx/module.ceylon
+++ b/source/org/otherone/vhostproxy/vertx/module.ceylon
@@ -1,9 +1,12 @@
 native("jvm") module org.otherone.vhostproxy.vertx "4" {
-    shared import io.vertx.ceylon.core "3.2.0";
-    import ceylon.regex "1.2.0";
-    import ceylon.logging "1.2.0";
-    //import ceylon.time "1.2.0";
+    shared import io.vertx.ceylon.core "3.3.2";
+    //shared import "io.vertx:vertx-lang-ceylon" "3.3.0-SNAPSHOT";
+    //shared import "io.vertx.lang.ceylon" "3.3.0-SNAPSHOT";
+    import ceylon.regex "1.2.2";
+    import ceylon.logging "1.2.2";
+    //import ceylon.time "1.2.1";
     import java.base "7";
-    import ceylon.file "1.2.0";
-    import ceylon.io "1.2.0";
+    //import "it.zero11:acme-client" "0.1.2";
+    import ceylon.file "1.2.2";
+    import ceylon.buffer "1.2.2";
 }