diff --git a/package.json b/package.json
index d85fdee..887cd7f 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "hw-redis-ohm",
-  "version": "0.0.14",
+  "version": "0.1.0",
   "description": "Redis Object Hash Mapping",
   "main": "lib/ohm.js",
   "author": "Olivier Penhoat <openhoat@gmail.com> (http://headwood.net/)",
@@ -33,7 +33,7 @@
     "hat": "0.0.3",
     "hiredis": "^0.4.1",
     "hw-logger": "^1.1.12",
-    "hw-error": "^0.0.10",
+    "hw-error": "^0.1.1",
     "hw-promise": "^0.0.2",
     "jayschema": "^0.3.1",
     "lodash": "^3.10.1",
diff --git a/test/ohmSpec.js b/test/ohmSpec.js
index 74b54cb..090a3a6 100644
--- a/test/ohmSpec.js
+++ b/test/ohmSpec.js
@@ -489,7 +489,7 @@ describe('hw-redis-ohm', function () {
             var entity = ohm.entityClasses.Contact.create(contacts[0]);
             return new p(function (resolve) {
               entity.save().nodeify(function (err) {
-                expect(err).to.have.property('name', 'CONFLICT');
+                expect(err).to.have.property('name', 'ConflictError');
                 resolve();
               });
             });
@@ -511,7 +511,7 @@ describe('hw-redis-ohm', function () {
             return new p(function (resolve) {
               entity.save().nodeify(function (err) {
                 console.log('err :', err);
-                expect(err).to.have.property('name', 'CONFLICT');
+                expect(err).to.have.property('name', 'ConflictError');
                 resolve();
               });
             });
@@ -519,7 +519,7 @@ describe('hw-redis-ohm', function () {
           function loadGroupFromBadId() {
             return new p(function (resolve) {
               ohm.entityClasses.Group.load('badid').nodeify(function (err) {
-                expect(err).to.have.property('name', 'NOT_FOUND');
+                expect(err).to.have.property('name', 'NotFoundError');
                 resolve();
               });
             });
@@ -590,7 +590,7 @@ describe('hw-redis-ohm', function () {
           function deleteGroupByBadId() {
             return new p(function (resolve) {
               ohm.entityClasses.Group.delete('badid').nodeify(function (err) {
-                expect(err).to.have.property('name', 'NOT_FOUND');
+                expect(err).to.have.property('name', 'NotFoundError');
                 resolve();
               });
             });
@@ -613,7 +613,7 @@ describe('hw-redis-ohm', function () {
             return new p(function (resolve) {
               delete groupEntities[0].value.id;
               groupEntities[0].delete().nodeify(function (err) {
-                expect(err).to.have.property('name', 'BAD_FORMAT');
+                expect(err).to.have.property('name', 'BadFormatError');
                 resolve();
               });
             });