diff --git a/.travis.yml b/.travis.yml
index 90f5a480..ae0362db 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,5 +1,8 @@
 language: node_js
 node_js:
+  - "10"
+  - "9"
+  - "8"
   - "7"
   - "6"
   - "5"
diff --git a/package.json b/package.json
index c4f2e60a..3cfbc02f 100644
--- a/package.json
+++ b/package.json
@@ -1,7 +1,7 @@
 {
    "name": "zookeeper"
   ,"description": "apache zookeeper client (zookeeper async API >= 3.4.0)"
-  ,"version": "3.4.9-3"
+  ,"version": "3.4.9-4"
   ,"author": "Yuri Finkelstein <yurif2003@yahoo.com>"
   ,"contributors": [
     "Yuri Finkelstein <yurif2003@yahoo.com>"
@@ -20,12 +20,12 @@
   }
   ,"keywords": ["apache", "zookeeper", "client"]
   ,"dependencies": {
-    "async": "~2.1.4"
-    ,"nan": "~2.5.0"
-    ,"lodash": "~4.17.2"
+    "async": "~2.6.1"
+    ,"nan": "~2.11.0"
+    ,"lodash": "~4.17.11"
   }
   ,"devDependencies": {
-    "log4js": "~1.0.1"
+    "log4js": "~3.0.5"
     ,"webworker": ">=0.8.4"
   }
   ,"main": "lib/index"
diff --git a/src/node-zk.cpp b/src/node-zk.cpp
index 8e114e2e..58e9b9ec 100644
--- a/src/node-zk.cpp
+++ b/src/node-zk.cpp
@@ -6,7 +6,6 @@
 #include <node.h>
 #include <node_buffer.h>
 #include <node_object_wrap.h>
-#include <v8-debug.h>
 using namespace v8;
 using namespace node;
 #undef THREADED
@@ -130,24 +129,24 @@ class ZooKeeper: public Nan::ObjectWrap {
 
         //extern ZOOAPI struct ACL_vector ZOO_OPEN_ACL_UNSAFE;
         Local<Object> acl_open = Nan::New<Object>();
-        Nan::ForceSet(acl_open, LOCAL_STRING("perms"), Nan::New<Integer>(ZOO_PERM_ALL), static_cast<PropertyAttribute>(ReadOnly | DontDelete));
-        Nan::ForceSet(acl_open, LOCAL_STRING("scheme"), LOCAL_STRING("world"), static_cast<PropertyAttribute>(ReadOnly | DontDelete));
-        Nan::ForceSet(acl_open, LOCAL_STRING("auth"), LOCAL_STRING("anyone"), static_cast<PropertyAttribute>(ReadOnly | DontDelete));
-        Nan::ForceSet(constructor, LOCAL_STRING("ZOO_OPEN_ACL_UNSAFE"), acl_open, static_cast<PropertyAttribute>(ReadOnly | DontDelete));
+        Nan::DefineOwnProperty(acl_open, LOCAL_STRING("perms"), Nan::New<Integer>(ZOO_PERM_ALL), static_cast<PropertyAttribute>(ReadOnly | DontDelete));
+        Nan::DefineOwnProperty(acl_open, LOCAL_STRING("scheme"), LOCAL_STRING("world"), static_cast<PropertyAttribute>(ReadOnly | DontDelete));
+        Nan::DefineOwnProperty(acl_open, LOCAL_STRING("auth"), LOCAL_STRING("anyone"), static_cast<PropertyAttribute>(ReadOnly | DontDelete));
+        Nan::DefineOwnProperty(constructor, LOCAL_STRING("ZOO_OPEN_ACL_UNSAFE"), acl_open, static_cast<PropertyAttribute>(ReadOnly | DontDelete));
 
         //extern ZOOAPI struct ACL_vector ZOO_READ_ACL_UNSAFE;
         Local<Object> acl_read = Nan::New<Object>();
-        Nan::ForceSet(acl_read, LOCAL_STRING("perms"), Nan::New<Integer>(ZOO_PERM_READ), static_cast<PropertyAttribute>(ReadOnly | DontDelete));
-        Nan::ForceSet(acl_read, LOCAL_STRING("scheme"), LOCAL_STRING("world"), static_cast<PropertyAttribute>(ReadOnly | DontDelete));
-        Nan::ForceSet(acl_read, LOCAL_STRING("auth"), LOCAL_STRING("anyone"), static_cast<PropertyAttribute>(ReadOnly | DontDelete));
-        Nan::ForceSet(constructor, LOCAL_STRING("ZOO_READ_ACL_UNSAFE"), acl_read, static_cast<PropertyAttribute>(ReadOnly | DontDelete));
+        Nan::DefineOwnProperty(acl_read, LOCAL_STRING("perms"), Nan::New<Integer>(ZOO_PERM_READ), static_cast<PropertyAttribute>(ReadOnly | DontDelete));
+        Nan::DefineOwnProperty(acl_read, LOCAL_STRING("scheme"), LOCAL_STRING("world"), static_cast<PropertyAttribute>(ReadOnly | DontDelete));
+        Nan::DefineOwnProperty(acl_read, LOCAL_STRING("auth"), LOCAL_STRING("anyone"), static_cast<PropertyAttribute>(ReadOnly | DontDelete));
+        Nan::DefineOwnProperty(constructor, LOCAL_STRING("ZOO_READ_ACL_UNSAFE"), acl_read, static_cast<PropertyAttribute>(ReadOnly | DontDelete));
 
         //extern ZOOAPI struct ACL_vector ZOO_CREATOR_ALL_ACL;
         Local<Object> acl_creator = Nan::New<Object>();
-        Nan::ForceSet(acl_creator, LOCAL_STRING("perms"), Nan::New<Integer>(ZOO_PERM_ALL), static_cast<PropertyAttribute>(ReadOnly | DontDelete));
-        Nan::ForceSet(acl_creator, LOCAL_STRING("scheme"), LOCAL_STRING("auth"), static_cast<PropertyAttribute>(ReadOnly | DontDelete));
-        Nan::ForceSet(acl_creator, LOCAL_STRING("auth"), LOCAL_STRING(""), static_cast<PropertyAttribute>(ReadOnly | DontDelete));
-        Nan::ForceSet(constructor, LOCAL_STRING("ZOO_CREATOR_ALL_ACL"), acl_creator, static_cast<PropertyAttribute>(ReadOnly | DontDelete));
+        Nan::DefineOwnProperty(acl_creator, LOCAL_STRING("perms"), Nan::New<Integer>(ZOO_PERM_ALL), static_cast<PropertyAttribute>(ReadOnly | DontDelete));
+        Nan::DefineOwnProperty(acl_creator, LOCAL_STRING("scheme"), LOCAL_STRING("auth"), static_cast<PropertyAttribute>(ReadOnly | DontDelete));
+        Nan::DefineOwnProperty(acl_creator, LOCAL_STRING("auth"), LOCAL_STRING(""), static_cast<PropertyAttribute>(ReadOnly | DontDelete));
+        Nan::DefineOwnProperty(constructor, LOCAL_STRING("ZOO_CREATOR_ALL_ACL"), acl_creator, static_cast<PropertyAttribute>(ReadOnly | DontDelete));
 
 
         NODE_DEFINE_CONSTANT(constructor, ZOO_CREATED_EVENT);
@@ -642,18 +641,18 @@ class ZooKeeper: public Nan::ObjectWrap {
     Local<Object> createStatObject (const struct Stat *stat) {
         Nan::EscapableHandleScope scope;
         Local<Object> o = Nan::New<Object>();
-        Nan::ForceSet(o, LOCAL_STRING("czxid"), Nan::New<Number>(stat->czxid), ReadOnly);
-        Nan::ForceSet(o, LOCAL_STRING("mzxid"), Nan::New<Number>(stat->mzxid), ReadOnly);
-        Nan::ForceSet(o, LOCAL_STRING("pzxid"), Nan::New<Number>(stat->pzxid), ReadOnly);
-        Nan::ForceSet(o, LOCAL_STRING("dataLength"), Nan::New<Integer>(stat->dataLength), ReadOnly);
-        Nan::ForceSet(o, LOCAL_STRING("numChildren"), Nan::New<Integer>(stat->numChildren), ReadOnly);
-        Nan::ForceSet(o, LOCAL_STRING("version"), Nan::New<Integer>(stat->version), ReadOnly);
-        Nan::ForceSet(o, LOCAL_STRING("cversion"), Nan::New<Integer>(stat->cversion), ReadOnly);
-        Nan::ForceSet(o, LOCAL_STRING("aversion"), Nan::New<Integer>(stat->aversion), ReadOnly);
-        Nan::ForceSet(o, LOCAL_STRING("ctime"), NODE_UNIXTIME_V8(stat->ctime/1000.), ReadOnly);
-        Nan::ForceSet(o, LOCAL_STRING("mtime"), NODE_UNIXTIME_V8(stat->mtime/1000.), ReadOnly);
-        Nan::ForceSet(o, LOCAL_STRING("ephemeralOwner"), idAsString(stat->ephemeralOwner), ReadOnly);
-        Nan::ForceSet(o, LOCAL_STRING("createdInThisSession"), Nan::New<Boolean>(myid.client_id == stat->ephemeralOwner), ReadOnly);
+        Nan::DefineOwnProperty(o, LOCAL_STRING("czxid"), Nan::New<Number>(stat->czxid), ReadOnly);
+        Nan::DefineOwnProperty(o, LOCAL_STRING("mzxid"), Nan::New<Number>(stat->mzxid), ReadOnly);
+        Nan::DefineOwnProperty(o, LOCAL_STRING("pzxid"), Nan::New<Number>(stat->pzxid), ReadOnly);
+        Nan::DefineOwnProperty(o, LOCAL_STRING("dataLength"), Nan::New<Integer>(stat->dataLength), ReadOnly);
+        Nan::DefineOwnProperty(o, LOCAL_STRING("numChildren"), Nan::New<Integer>(stat->numChildren), ReadOnly);
+        Nan::DefineOwnProperty(o, LOCAL_STRING("version"), Nan::New<Integer>(stat->version), ReadOnly);
+        Nan::DefineOwnProperty(o, LOCAL_STRING("cversion"), Nan::New<Integer>(stat->cversion), ReadOnly);
+        Nan::DefineOwnProperty(o, LOCAL_STRING("aversion"), Nan::New<Integer>(stat->aversion), ReadOnly);
+        Nan::DefineOwnProperty(o, LOCAL_STRING("ctime"), NODE_UNIXTIME_V8(stat->ctime/1000.), ReadOnly);
+        Nan::DefineOwnProperty(o, LOCAL_STRING("mtime"), NODE_UNIXTIME_V8(stat->mtime/1000.), ReadOnly);
+        Nan::DefineOwnProperty(o, LOCAL_STRING("ephemeralOwner"), idAsString(stat->ephemeralOwner), ReadOnly);
+        Nan::DefineOwnProperty(o, LOCAL_STRING("createdInThisSession"), Nan::New<Boolean>(myid.client_id == stat->ephemeralOwner), ReadOnly);
         return scope.Escape(o);
     }
 
@@ -872,9 +871,9 @@ class ZooKeeper: public Nan::ObjectWrap {
             struct ACL *acl = &aclv->data[i];
 
             Local<Object> obj = Nan::New<Object>();
-            Nan::ForceSet(obj, LOCAL_STRING("perms"), Nan::New<Integer>(acl->perms), ReadOnly);
-            Nan::ForceSet(obj, LOCAL_STRING("scheme"), LOCAL_STRING(acl->id.scheme), ReadOnly);
-            Nan::ForceSet(obj, LOCAL_STRING("auth"), LOCAL_STRING(acl->id.id), ReadOnly);
+            Nan::DefineOwnProperty(obj, LOCAL_STRING("perms"), Nan::New<Integer>(acl->perms), ReadOnly);
+            Nan::DefineOwnProperty(obj, LOCAL_STRING("scheme"), LOCAL_STRING(acl->id.scheme), ReadOnly);
+            Nan::DefineOwnProperty(obj, LOCAL_STRING("auth"), LOCAL_STRING(acl->id.id), ReadOnly);
 
             arr->Set(i, obj);
         }