diff --git a/@here/generator-harp.gl/package.json b/@here/generator-harp.gl/package.json
index f4575a8ec3..ed67dbf98d 100644
--- a/@here/generator-harp.gl/package.json
+++ b/@here/generator-harp.gl/package.json
@@ -23,13 +23,14 @@
     ],
     "dependencies": {
         "mkdirp": "^1.0.4",
-        "yeoman-generator": "^4.10.1"
+        "yeoman-generator": "^5.2.0"
     },
     "devDependencies": {
         "chai": "^4.2.0",
         "fs.extra": "^1.3.2",
         "mocha": "^8.2.1",
-        "yeoman-test": "^2.6.0"
+        "yeoman-environment": "^3.4.0",
+        "yeoman-test": "^6.1.0"
     },
     "publishConfig": {
         "access": "public"
diff --git a/@here/generator-harp.gl/test/test.js b/@here/generator-harp.gl/test/test.js
index c5c3eef86e..783398f67e 100644
--- a/@here/generator-harp.gl/test/test.js
+++ b/@here/generator-harp.gl/test/test.js
@@ -2,12 +2,8 @@ const fs = require("fs");
 const fsExtra = require("fs.extra");
 const path = require("path");
 const yeomanTestHelpers = require("yeoman-test");
-const {
-    assert
-} = require("chai");
-const {
-    spawnSync
-} = require('child_process');
+const { assert } = require("chai");
+const { spawnSync } = require("child_process");
 
 /*
 
@@ -17,13 +13,13 @@ const {
 
 */
 describe("harp.gl:app", function () {
-
     this.timeout(300000);
 
     let helperDirectory;
 
     before(async function () {
-        helperDirectory = await yeomanTestHelpers.run(path.join(__dirname, '../generators/app'))
+        helperDirectory = await yeomanTestHelpers
+            .run(path.join(__dirname, "../generators/app"))
             .inTmpDir(function (dir) {
                 if (process.env.USE_NPMRC) {
                     const targetPath = path.join(dir, ".npmrc");
@@ -31,20 +27,21 @@ describe("harp.gl:app", function () {
                 }
             })
             .withPrompts({
-                'access_token': 'test_token'
+                language: "typescript",
+                apikey: "test_token"
             });
 
-        assert.isString(helperDirectory);
+        assert.isString(helperDirectory.cwd);
     });
 
     it("webpack", async function () {
         const installStatus = spawnSync("npm", ["install"], {
-            cwd: helperDirectory
+            cwd: helperDirectory.cwd
         });
         assert.strictEqual(installStatus.status, 0, installStatus.output);
 
         const buildStatus = spawnSync("npm", ["run", "build"], {
-            cwd: helperDirectory
+            cwd: helperDirectory.cwd
         });
         assert.strictEqual(buildStatus.status, 0, buildStatus.output);
     });
@@ -53,7 +50,7 @@ describe("harp.gl:app", function () {
         if (process.env.KEEP_TEMP_DIR) {
             console.log("Keeping", helperDirectory);
         } else {
-            fsExtra.rmrfSync(helperDirectory);
+            fsExtra.rmrfSync(helperDirectory.cwd);
         }
     });
 });