diff --git a/.gitignore b/.gitignore
index f0dc23c3..1b6fdd7c 100644
--- a/.gitignore
+++ b/.gitignore
@@ -18,6 +18,5 @@ yarn.lock
 /lib
 test/coverage.json
 temp/
-puppeteer-core-*.tgz
 new-docs/
-puppeteer-*.tgz
+puppeteer.tgz
diff --git a/scripts/test-ts-definition-files.ts b/scripts/test-ts-definition-files.ts
index d9f15133..3ee8a331 100644
--- a/scripts/test-ts-definition-files.ts
+++ b/scripts/test-ts-definition-files.ts
@@ -1,6 +1,7 @@
 import { spawnSync } from 'child_process';
 import { version } from '../package.json';
 import path from 'path';
+import fs from 'fs';
 const PROJECT_FOLDERS_ROOT = 'test-ts-types';
 const EXPECTED_ERRORS = new Map<string, string[]>([
   [
@@ -71,13 +72,23 @@ function packPuppeteer() {
   const result = spawnSync('npm', ['pack'], {
     encoding: 'utf-8',
   });
-
   if (result.status !== 0) {
     console.log('Failed to pack Puppeteer', result.stderr);
     process.exit(1);
   }
 
-  return `puppeteer-${version}.tgz`;
+  // Move from puppeteer-X.Y.Z.tgz to puppeteer.tgz so we don't have to update
+  // it when versions change.
+  const moveResult = spawnSync('mv', [
+    `puppeteer-${version}.tgz`,
+    'puppeteer.tgz',
+  ]);
+  if (moveResult.status !== 0) {
+    console.log('Failed to rename Puppeteer tar', moveResult.stderr);
+    process.exit(1);
+  }
+
+  return `puppeteer.tgz`;
 }
 
 const tar = packPuppeteer();
@@ -112,12 +123,22 @@ function testProject(folder: string) {
   );
 
   const tarLocation = path.relative(projectLocation, tarPath);
-  console.log('===> Installing Puppeteer from tar file');
+  console.log('===> Clearing left over node_modules to ensure clean slate');
+  try {
+    fs.rmdirSync(path.join(projectLocation, 'node_modules'), {
+      recursive: true,
+    });
+  } catch (_error) {
+    // We don't care if this errors because if it did it's most likely because
+    // there was no node_modules folder, which is fine.
+  }
+  console.log('===> Installing Puppeteer from tar file', tarLocation);
   const { status, stderr, stdout } = spawnSync(
     'npm',
-    ['install', '--no-package-lock', tarLocation],
+    ['install', tarLocation],
     {
       env: {
+        ...process.env,
         PUPPETEER_SKIP_DOWNLOAD: '1',
       },
       cwd: projectLocation,
diff --git a/test-ts-types/js-cjs-import-cjs-output/package.json b/test-ts-types/js-cjs-import-cjs-output/package.json
index 3c0d055e..6141e954 100644
--- a/test-ts-types/js-cjs-import-cjs-output/package.json
+++ b/test-ts-types/js-cjs-import-cjs-output/package.json
@@ -7,6 +7,6 @@
     "compile": "../../node_modules/.bin/tsc"
   },
   "dependencies": {
-    "puppeteer": "file:../../puppeteer-7.0.4-post.tgz"
+    "puppeteer": "file:../../puppeteer.tgz"
   }
 }
diff --git a/test-ts-types/js-cjs-import-esm-output/package.json b/test-ts-types/js-cjs-import-esm-output/package.json
index 27d6b18b..063237ea 100644
--- a/test-ts-types/js-cjs-import-esm-output/package.json
+++ b/test-ts-types/js-cjs-import-esm-output/package.json
@@ -10,6 +10,6 @@
     "typescript": "^4.1.3"
   },
   "dependencies": {
-    "puppeteer": "file:../../puppeteer-7.0.4-post.tgz"
+    "puppeteer": "file:../../puppeteer.tgz"
   }
 }
diff --git a/test-ts-types/js-esm-import-cjs-output/package.json b/test-ts-types/js-esm-import-cjs-output/package.json
index 27d6b18b..063237ea 100644
--- a/test-ts-types/js-esm-import-cjs-output/package.json
+++ b/test-ts-types/js-esm-import-cjs-output/package.json
@@ -10,6 +10,6 @@
     "typescript": "^4.1.3"
   },
   "dependencies": {
-    "puppeteer": "file:../../puppeteer-7.0.4-post.tgz"
+    "puppeteer": "file:../../puppeteer.tgz"
   }
 }
diff --git a/test-ts-types/js-esm-import-esm-output/package.json b/test-ts-types/js-esm-import-esm-output/package.json
index 27d6b18b..063237ea 100644
--- a/test-ts-types/js-esm-import-esm-output/package.json
+++ b/test-ts-types/js-esm-import-esm-output/package.json
@@ -10,6 +10,6 @@
     "typescript": "^4.1.3"
   },
   "dependencies": {
-    "puppeteer": "file:../../puppeteer-7.0.4-post.tgz"
+    "puppeteer": "file:../../puppeteer.tgz"
   }
 }
diff --git a/test-ts-types/ts-cjs-import-cjs-output/package.json b/test-ts-types/ts-cjs-import-cjs-output/package.json
index 27d6b18b..063237ea 100644
--- a/test-ts-types/ts-cjs-import-cjs-output/package.json
+++ b/test-ts-types/ts-cjs-import-cjs-output/package.json
@@ -10,6 +10,6 @@
     "typescript": "^4.1.3"
   },
   "dependencies": {
-    "puppeteer": "file:../../puppeteer-7.0.4-post.tgz"
+    "puppeteer": "file:../../puppeteer.tgz"
   }
 }
diff --git a/test-ts-types/ts-esm-import-cjs-output/package.json b/test-ts-types/ts-esm-import-cjs-output/package.json
index 27d6b18b..063237ea 100644
--- a/test-ts-types/ts-esm-import-cjs-output/package.json
+++ b/test-ts-types/ts-esm-import-cjs-output/package.json
@@ -10,6 +10,6 @@
     "typescript": "^4.1.3"
   },
   "dependencies": {
-    "puppeteer": "file:../../puppeteer-7.0.4-post.tgz"
+    "puppeteer": "file:../../puppeteer.tgz"
   }
 }
diff --git a/test-ts-types/ts-esm-import-esm-output/package.json b/test-ts-types/ts-esm-import-esm-output/package.json
index 27d6b18b..063237ea 100644
--- a/test-ts-types/ts-esm-import-esm-output/package.json
+++ b/test-ts-types/ts-esm-import-esm-output/package.json
@@ -10,6 +10,6 @@
     "typescript": "^4.1.3"
   },
   "dependencies": {
-    "puppeteer": "file:../../puppeteer-7.0.4-post.tgz"
+    "puppeteer": "file:../../puppeteer.tgz"
   }
 }