diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 1f7b731..14b132c 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -9,7 +9,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        node-version: [18, 20, 22]
+        node-version: [18, 20, 22, 26]
     steps:
       - name: Checkout
         uses: actions/checkout@v5
diff --git a/lib/baseClasses/HttpError.js b/lib/baseClasses/HttpError.js
index d5f0428..db82687 100644
--- a/lib/baseClasses/HttpError.js
+++ b/lib/baseClasses/HttpError.js
@@ -149,8 +149,8 @@ HttpError.prototype.toJSON = function toJSON() {
     var message = '';
 
     // if we have a cause, get the full VError toString() without the current
-    // error name. verbose check, self.cause can exist but returns undefined
-    if (self.cause && typeof self.cause === 'function' && self.cause()) {
+    // error name.
+    if (self.cause) {
         var fullString = self.toString();
         message = fullString.substr(fullString.indexOf(' ') + 1);
     } else {
@@ -159,8 +159,7 @@ HttpError.prototype.toJSON = function toJSON() {
 
     return {
         code: self.body.code,
-        message: message,
-        cause: self.cause
+        message: message
     };
 };
 
diff --git a/lib/serializer.js b/lib/serializer.js
index 0ccd264..517fa84 100644
--- a/lib/serializer.js
+++ b/lib/serializer.js
@@ -71,7 +71,7 @@ function _getMultiErrorStack(err) {
 
 
 /**
- * loop through all cause() errors and build a stack trace output
+ * loop through all cause errors and build a stack trace output
  * @private
  * @method _getFullErrorStack
  * @param {Object} err an error object
@@ -94,7 +94,7 @@ function _getFullErrorStack(err) {
 
         out += stackString.shift() + self._getSerializedContext(e);
         out += stackString.join('\n');
-        e = (typeof e.cause === 'function') ? e.cause() : null;
+        e = e.cause || null;
         first = false;
     } while (e);
 
diff --git a/package.json b/package.json
index de848c1..1a04d44 100644
--- a/package.json
+++ b/package.json
@@ -51,8 +51,11 @@
   "optionalDependencies": {
     "safe-json-stringify": "^1.2.0"
   },
+  "overrides": {
+    "@netflix/nerror": "2.0.0-rc.0"
+  },
   "dependencies": {
-    "@netflix/nerror": "^1.1.3",
+    "@netflix/nerror": "2.0.0-rc.0",
     "assert-plus": "^1.0.0",
     "lodash": "^4.17.21"
   }
diff --git a/test/index.js b/test/index.js
index dd248f7..078bd2d 100644
--- a/test/index.js
+++ b/test/index.js
@@ -76,7 +76,7 @@ describe('restify-errors node module.', function() {
             var priorErr = new Error('foobar');
             var myErr = new HttpError(priorErr, 'new message');
 
-            assert.equal(myErr.cause(), priorErr);
+            assert.equal(myErr.cause, priorErr);
             assert.equal(myErr.name, 'HttpError');
             assert.equal(myErr.message, 'new message');
             assert.isObject(myErr.body);
@@ -89,7 +89,7 @@ describe('restify-errors node module.', function() {
                 cause: priorErr
             }, myErr2Msg);
 
-            assert.equal(myErr2.cause(), priorErr);
+            assert.equal(myErr2.cause, priorErr);
             assert.equal(myErr2.name, 'HttpError');
             assert.equal(myErr2.message, myErr2Msg);
             assert.isObject(myErr2.body);
@@ -193,7 +193,7 @@ describe('restify-errors node module.', function() {
             var priorErr = new Error('foobar');
             var myErr = new httpErrors.BadGatewayError(priorErr);
 
-            assert.equal(myErr.cause(), priorErr);
+            assert.equal(myErr.cause, priorErr);
             assert.equal(myErr.name, 'BadGatewayError');
             assert.equal(myErr.statusCode, 502);
             assert.isObject(myErr.body);
@@ -205,7 +205,7 @@ describe('restify-errors node module.', function() {
                 cause: priorErr
             }, myErr2Msg);
 
-            assert.equal(myErr.cause(), priorErr);
+            assert.equal(myErr.cause, priorErr);
             assert.equal(myErr2.name, 'BadGatewayError');
             assert.equal(myErr2.statusCode, 502);
             assert.equal(myErr2.message, myErr2Msg);
@@ -272,7 +272,7 @@ describe('restify-errors node module.', function() {
             var priorErr = new Error('foobar');
             var myErr = new RestError(priorErr);
 
-            assert.equal(myErr.cause(), priorErr);
+            assert.equal(myErr.cause, priorErr);
             assert.equal(myErr.name, 'RestError');
             assert.equal(myErr.restCode, 'Error');
             assert.equal(myErr.message, '');
@@ -288,7 +288,7 @@ describe('restify-errors node module.', function() {
             };
             var myErr2 = new RestError(options, errMsg);
 
-            assert.equal(myErr2.cause(), priorErr);
+            assert.equal(myErr2.cause, priorErr);
             assert.equal(myErr2.name, 'RestError');
             assert.equal(myErr2.restCode, options.restCode);
             assert.equal(myErr2.message, errMsg);
@@ -605,7 +605,7 @@ describe('restify-errors node module.', function() {
             assert.isObject(err.body);
             assert.equal(err.body.code, 'Execution');
             assert.equal(err.body.message, 'bad joystick input');
-            assert.equal(err.cause(), underlyingErr);
+            assert.equal(err.cause, underlyingErr);
 
             // assert stringification
             var expectedJSON = {
@@ -646,7 +646,7 @@ describe('restify-errors node module.', function() {
             assert.isObject(err.body);
             assert.equal(err.body.code, 'Execution');
             assert.equal(err.body.message, 'bad joystick input');
-            assert.equal(err.cause(), underlyingErr);
+            assert.equal(err.cause, underlyingErr);
             assert.deepEqual(restifyErrors.info(err), {
                 foo: 'bar',
                 baz: [ 1, 2, 3 ]