diff --git a/packages/sdk/package.json b/packages/sdk/package.json
index f704f2ca5..7f37f19fa 100644
--- a/packages/sdk/package.json
+++ b/packages/sdk/package.json
@@ -25,7 +25,6 @@
         "@zenstackhq/runtime": "workspace:*",
         "langium": "1.3.1",
         "lower-case-first": "^2.0.2",
-        "prettier": "^2.8.3 || 3.x",
         "semver": "^7.5.2",
         "ts-morph": "^16.0.0",
         "ts-pattern": "^4.3.0",
diff --git a/packages/sdk/src/code-gen.ts b/packages/sdk/src/code-gen.ts
index 6039c2f25..3f80e7e4d 100644
--- a/packages/sdk/src/code-gen.ts
+++ b/packages/sdk/src/code-gen.ts
@@ -1,29 +1,6 @@
-import prettier from 'prettier';
-import { CompilerOptions, DiagnosticCategory, ModuleKind, Project, ScriptTarget, SourceFile } from 'ts-morph';
+import { CompilerOptions, DiagnosticCategory, ModuleKind, Project, ScriptTarget } from 'ts-morph';
 import { PluginError } from './types';
 
-const formatOptions = {
-    trailingComma: 'all',
-    tabWidth: 4,
-    printWidth: 120,
-    bracketSpacing: true,
-    semi: true,
-    singleQuote: true,
-    useTabs: false,
-    parser: 'typescript',
-} as const;
-
-async function formatFile(sourceFile: SourceFile) {
-    try {
-        const content = sourceFile.getFullText();
-        const formatted = await prettier.format(content, formatOptions);
-        sourceFile.replaceWithText(formatted);
-        await sourceFile.save();
-    } catch {
-        /* empty */
-    }
-}
-
 /**
  * Creates a TS code generation project
  */
@@ -46,11 +23,7 @@ export function createProject(options?: CompilerOptions) {
  * Persists a TS project to disk.
  */
 export async function saveProject(project: Project) {
-    await Promise.all(
-        project.getSourceFiles().map(async (sf) => {
-            await formatFile(sf);
-        })
-    );
+    project.getSourceFiles().forEach((sf) => sf.formatText());
     await project.save();
 }
 
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 43aa526d9..5b6571803 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -635,9 +635,6 @@ importers:
       lower-case-first:
         specifier: ^2.0.2
         version: 2.0.2
-      prettier:
-        specifier: ^2.8.3 || 3.x
-        version: 2.8.8
       semver:
         specifier: ^7.5.2
         version: 7.5.4