diff --git a/package-lock.json b/package-lock.json
index cd1e05f9..175b5b97 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -11,7 +11,7 @@
       "dependencies": {
         "@vscode/debugadapter": "^1.68.0",
         "@vscode/debugprotocol": "^1.68.0",
-        "@xmldom/xmldom": "^0.8.4",
+        "@xmldom/xmldom": "^0.9.8",
         "buffer-crc32": "^1.0.0",
         "dotenv": "^17.2.1",
         "file-url": "^3.0.0",
@@ -3348,11 +3348,11 @@
       }
     },
     "node_modules/@xmldom/xmldom": {
-      "version": "0.8.10",
-      "resolved": "https://registry.npmjs.org/@xmldom/xmldom/-/xmldom-0.8.10.tgz",
-      "integrity": "sha512-2WALfTl4xo2SkGCYRt6rDTFfk9R1czmBvUQy12gK2KuRKIpWEhcbbzy8EZXtz/jkRqHX8bFEc6FC1HjX4TUWYw==",
+      "version": "0.9.8",
+      "resolved": "https://registry.npmjs.org/@xmldom/xmldom/-/xmldom-0.9.8.tgz",
+      "integrity": "sha512-p96FSY54r+WJ50FIOsCOjyj/wavs8921hG5+kVMmZgKcvIKxMXHTrjNJvRgWa/zuX3B6t2lijLNFaOyuxUH+2A==",
       "engines": {
-        "node": ">=10.0.0"
+        "node": ">=14.6"
       }
     },
     "node_modules/acorn": {
@@ -16759,9 +16759,9 @@
       "optional": true
     },
     "@xmldom/xmldom": {
-      "version": "0.8.10",
-      "resolved": "https://registry.npmjs.org/@xmldom/xmldom/-/xmldom-0.8.10.tgz",
-      "integrity": "sha512-2WALfTl4xo2SkGCYRt6rDTFfk9R1czmBvUQy12gK2KuRKIpWEhcbbzy8EZXtz/jkRqHX8bFEc6FC1HjX4TUWYw=="
+      "version": "0.9.8",
+      "resolved": "https://registry.npmjs.org/@xmldom/xmldom/-/xmldom-0.9.8.tgz",
+      "integrity": "sha512-p96FSY54r+WJ50FIOsCOjyj/wavs8921hG5+kVMmZgKcvIKxMXHTrjNJvRgWa/zuX3B6t2lijLNFaOyuxUH+2A=="
     },
     "acorn": {
       "version": "8.15.0",
diff --git a/package.json b/package.json
index ea577879..717617de 100644
--- a/package.json
+++ b/package.json
@@ -45,7 +45,7 @@
   "dependencies": {
     "@vscode/debugadapter": "^1.68.0",
     "@vscode/debugprotocol": "^1.68.0",
-    "@xmldom/xmldom": "^0.8.4",
+    "@xmldom/xmldom": "^0.9.8",
     "buffer-crc32": "^1.0.0",
     "dotenv": "^17.2.1",
     "file-url": "^3.0.0",
diff --git a/src/dbgp.ts b/src/dbgp.ts
index 48d9ba1d..e562d5ad 100644
--- a/src/dbgp.ts
+++ b/src/dbgp.ts
@@ -92,21 +92,18 @@ export class DbgpConnection extends EventEmitter {
                 // append the last piece of the response
                 const lastResponsePiece = data.slice(0, this._dataLength - this._chunksDataLength)
                 this._chunks.push(lastResponsePiece)
-                this._chunksDataLength += data.length
+                this._chunksDataLength += lastResponsePiece.length
                 const response = Buffer.concat(this._chunks, this._chunksDataLength)
                 // call response handler
                 const xml = iconv.decode(response, ENCODING)
                 const parser = new DOMParser({
-                    errorHandler: {
-                        warning: warning => {
-                            this.emit('warning', warning)
-                        },
-                        error: error => {
-                            this.emit('error', error instanceof Error ? error : new Error(error as string))
-                        },
-                        fatalError: error => {
-                            this.emit('error', error instanceof Error ? error : new Error(error as string))
-                        },
+                    onError: (level, msg) => {
+                        if (level === 'warning') {
+                            this.emit('warning', msg)
+                        }
+                        if (level === 'error' || level === 'fatalError') {
+                            this.emit('error', new Error(msg))
+                        }
                     },
                 })
                 this.emit('log', `-> ${xml.replace(/[\0\n]/g, '')}`)
diff --git a/src/proxyConnect.ts b/src/proxyConnect.ts
index ad6b4202..cdbbd8cd 100644
--- a/src/proxyConnect.ts
+++ b/src/proxyConnect.ts
@@ -155,10 +155,8 @@ export class ProxyConnect extends EventEmitter {
     /** Parse data from response server and emit the relevant notification. */
     private _responseStrategy(data: Buffer) {
         try {
-            const documentElement = this._parser.parseFromString(
-                decode(data, ENCODING),
-                'application/xml'
-            ).documentElement
+            const documentElement = this._parser.parseFromString(decode(data, ENCODING), 'application/xml')
+                .documentElement!
             const isSuccessful = documentElement.getAttribute('success') === '1'
             const error = documentElement.firstChild
             if (isSuccessful && documentElement.nodeName === 'proxyinit') {