diff --git a/package.json b/package.json
index 09d91700..eb8c4ad3 100644
--- a/package.json
+++ b/package.json
@@ -60,7 +60,7 @@
 		}
 	},
 	"dependencies": {
-		"dt-sql-parser": "4.0.0-beta.4.9"
+		"dt-sql-parser": "4.0.0-beta.4.11"
 	},
 	"peerDependencies": {
 		"monaco-editor": ">=0.31.0"
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 566bd459..0d193dda 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -3,7 +3,7 @@ lockfileVersion: 5.3
 specifiers:
   '@types/mocha': ^9.1.0
   '@types/node': ^20.4.0
-  dt-sql-parser: 4.0.0-beta.4.9
+  dt-sql-parser: 4.0.0-beta.4.11
   eslint: ^7.1.0
   eslint-config-google: ^0.14.0
   eslint-config-prettier: ^6.15.0
@@ -24,7 +24,7 @@ specifiers:
   typescript: ^5.0.4
 
 dependencies:
-  dt-sql-parser: 4.0.0-beta.4.9
+  dt-sql-parser: 4.0.0-beta.4.11
 
 devDependencies:
   '@types/mocha': 9.1.1
@@ -988,8 +988,8 @@ packages:
       minimatch: 3.1.2
     dev: true
 
-  /dt-sql-parser/4.0.0-beta.4.9:
-    resolution: {integrity: sha512-c0mStI57Hq+15XRKuwZ7YZ+4C3Z+mO+nJ/wdws6PndBTjVF55mlbHVbRuBGDjlCFSpeN+VqEY/d2VZC4q1oMpQ==}
+  /dt-sql-parser/4.0.0-beta.4.11:
+    resolution: {integrity: sha512-bgMJAMImikNwE0OPZApI+R+PjpI8xoJAksQIUJdtS4+piZII1LHzbmlp8T7iRJ4Fo56EwY5ILmv9VcZ/PwKV1A==}
     dependencies:
       antlr4-c3: 3.1.1
       antlr4ts: 0.5.0-alpha.4
diff --git a/src/languageFeatures.ts b/src/languageFeatures.ts
index aa3e199f..fc95604f 100644
--- a/src/languageFeatures.ts
+++ b/src/languageFeatures.ts
@@ -113,29 +113,23 @@ export class DiagnosticsAdapter<T extends IWorker> {
 	}
 }
 
-function toSeverity(lsSeverity: number): MarkerSeverity {
+function toSeverity(lsSeverity?: number): MarkerSeverity {
 	switch (lsSeverity) {
 		default:
 			return MarkerSeverity.Error;
 	}
 }
 
-/**
- * TODO: diag is actually a type ParseError
- * @see {@link ParseError}
- */
-function toDiagnostics(resource: Uri, diag: any): editor.IMarkerData {
-	let code = typeof diag.code === 'number' ? String(diag.code) : <string>diag.code;
-
+function toDiagnostics(resource: Uri, diag: ParseError): editor.IMarkerData {
 	return {
-		severity: toSeverity(diag.severity),
+		severity: toSeverity(),
 		startLineNumber: diag.startLine,
-		startColumn: diag.startCol + 1,
+		startColumn: diag.startColumn,
 		endLineNumber: diag.endLine,
-		endColumn: diag.endCol + 1,
+		endColumn: diag.endColumn,
 		message: diag.message,
-		code: code,
-		source: diag.source
+		code: undefined, // TODO: set error type
+		source: 'dt-sql-parser'
 	};
 }
 
diff --git a/yarn.lock b/yarn.lock
index bf80aed2..ec14d480 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -985,10 +985,10 @@ dotgitignore@^2.1.0:
     find-up "^3.0.0"
     minimatch "^3.0.4"
 
-dt-sql-parser@4.0.0-beta.4.9:
-  version "4.0.0-beta.4.9"
-  resolved "https://registry.npmmirror.com/dt-sql-parser/-/dt-sql-parser-4.0.0-beta.4.9.tgz#0f2fc382829f6ad9bbbd7d8ac6a6ceb33336f466"
-  integrity sha512-c0mStI57Hq+15XRKuwZ7YZ+4C3Z+mO+nJ/wdws6PndBTjVF55mlbHVbRuBGDjlCFSpeN+VqEY/d2VZC4q1oMpQ==
+dt-sql-parser@4.0.0-beta.4.11:
+  version "4.0.0-beta.4.11"
+  resolved "https://registry.npmmirror.com/dt-sql-parser/-/dt-sql-parser-4.0.0-beta.4.11.tgz#2119847717f3ec6a462a418425db1b92e8a5f1a8"
+  integrity sha512-bgMJAMImikNwE0OPZApI+R+PjpI8xoJAksQIUJdtS4+piZII1LHzbmlp8T7iRJ4Fo56EwY5ILmv9VcZ/PwKV1A==
   dependencies:
     antlr4-c3 "3.1.1"
     antlr4ts "0.5.0-alpha.4"