diff --git a/src/schematics/ng-add/index.spec.ts b/src/schematics/ng-add/index.spec.ts
index 5bd0865..74254da 100644
--- a/src/schematics/ng-add/index.spec.ts
+++ b/src/schematics/ng-add/index.spec.ts
@@ -53,5 +53,9 @@ describe('ng-add', () => {
 
     const packageJSON = JSON.parse(tree.readContent('/package.json'));
     expect(packageJSON.devDependencies['@playwright/test']).toBeTruthy();
+    // check that the dependency is added in the correct place
+    expect(Object.keys(packageJSON.devDependencies)).toEqual(
+      Object.keys(packageJSON.devDependencies).sort(),
+    );
   });
 });
diff --git a/src/schematics/ng-add/index.ts b/src/schematics/ng-add/index.ts
index a7a3cf2..b0361d2 100644
--- a/src/schematics/ng-add/index.ts
+++ b/src/schematics/ng-add/index.ts
@@ -106,6 +106,7 @@ function addPackageToPackageJson(
   if (!json.devDependencies[pkg]) {
     json.devDependencies[pkg] = version;
   }
+  json.devDependencies = sortObjectByKeys(json.devDependencies);
   tree.overwrite('package.json', JSON.stringify(json, null, 2));
 
   return tree;
@@ -123,3 +124,17 @@ function addPlaywright(tree: Tree, context: SchematicContext) {
     PLAYWRIGHT_TEST_VERSION,
   );
 }
+
+function sortObjectByKeys(
+  obj: Record<string, unknown>,
+): Record<string, unknown> {
+  return Object.keys(obj)
+    .sort()
+    .reduce((result, key) => {
+      return {
+        // biome-ignore lint/performance/noAccumulatingSpread: small object, no perf cost
+        ...result,
+        [key]: obj[key],
+      };
+    }, {});
+}