diff --git a/.github/workflows/test-pnpm.yml b/.github/workflows/test-pnpm.yml
new file mode 100644
index 0000000..b872b4a
--- /dev/null
+++ b/.github/workflows/test-pnpm.yml
@@ -0,0 +1,26 @@
+name: test
+
+on:
+  push:
+    branches: [ main ]
+  pull_request:
+    branches: [ main ]
+
+jobs:
+  test:
+    runs-on: ${{ matrix.os }}
+    timeout-minutes: 12
+    strategy:
+      fail-fast: false
+      matrix:
+        node-version: [18.x, 20.x, 22.x]
+        os: [ubuntu-latest, windows-latest]
+    steps:
+    - uses: actions/checkout@v4
+    - uses: actions/setup-node@v4
+    - uses: pnpm/action-setup@v4
+      with:
+        node-version: ${{ matrix.node-version }}
+    - run: npm install
+    - run: npm run build --if-present
+    - run: npm run test-ci-pnpm
diff --git a/package.json b/package.json
index 043ba3f..4a55a2f 100644
--- a/package.json
+++ b/package.json
@@ -75,6 +75,7 @@
     "test:all": "cd tests && npm run test:all",
     "test:all-ci": "cd tests && npm run test:all-ci",
     "test": "npm run test:all",
+    "test-ci-pnpm": "cd tests && cd test-pnpm && pnpm i && npm run test",
     "test-ci": "npm run test:install && npm run test:all-ci",
     "test-cover": "npm run test:install && c8 npm run test:all",
     "lint": "eslint .",
diff --git a/tests/tests-pnpm/package.json b/tests/tests-pnpm/package.json
new file mode 100644
index 0000000..38c19a1
--- /dev/null
+++ b/tests/tests-pnpm/package.json
@@ -0,0 +1,26 @@
+{
+  "name": "scoped-package-mock",
+  "type": "module",
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/iambumblehead/esmock.git"
+  },  
+  "scripts": {
+    "test-tsimp": "TSIMP_PROJECT=./test/tsconfig.json node --import tsimp/import --test-reporter spec --test 'test/example.test.ts'",
+    "test-tsx": "TSX_TSCONFIG_PATH=./test/tsconfig.json node --import tsx --test-reporter spec --test 'test/example.test.ts'",
+    "test-tsnode": "TS_NODE_PROJECT=./test/tsconfig.json node --import ./ts-node.register.mjs --test-reporter spec --test 'test/example.test.ts'",
+    "test": "npm run test-tsnode"
+  },
+  "dependencies": {
+    "@nestjs/core": "^10.3.8",
+    "@nestjs/platform-express": "^10.3.8"
+  },
+  "devDependencies": {
+    "@types/node": "^20.12.7",
+    "esmock": "file:..",
+    "ts-node": "^10.9.2",
+    "tsimp": "^2.0.11",
+    "tsx": "^4.9.3",
+    "typescript": "^5.4.5"
+  }
+}
diff --git a/tests/tests-pnpm/src/example.ts b/tests/tests-pnpm/src/example.ts
new file mode 100644
index 0000000..fe78e78
--- /dev/null
+++ b/tests/tests-pnpm/src/example.ts
@@ -0,0 +1,6 @@
+import { NestFactory } from "@nestjs/core"
+
+export const example = async () => {
+  const test = await NestFactory.create({} as any)
+  console.log(test)
+}
diff --git a/tests/tests-pnpm/src/tsconfig.json b/tests/tests-pnpm/src/tsconfig.json
new file mode 100644
index 0000000..0186915
--- /dev/null
+++ b/tests/tests-pnpm/src/tsconfig.json
@@ -0,0 +1,14 @@
+{
+  "compilerOptions": {
+    "target": "ES2022",
+    "module": "Node16",
+    "moduleResolution": "Node16",
+    "declaration": true,
+    "emitDecoratorMetadata": true,
+    "experimentalDecorators": true,
+    "forceConsistentCasingInFileNames": true,
+    "noUnusedLocals": true,
+    "noUnusedParameters": true,
+    "strict": true,
+  }
+}
diff --git a/tests/tests-pnpm/test/example.test.ts b/tests/tests-pnpm/test/example.test.ts
new file mode 100644
index 0000000..e0479b5
--- /dev/null
+++ b/tests/tests-pnpm/test/example.test.ts
@@ -0,0 +1,23 @@
+import { describe, it } from "node:test"
+import { equal } from "node:assert/strict"
+import esmock from "esmock"
+
+describe("Example", async () => {
+  it("Fails", async () => {
+    const { example } = await esmock(
+      "../src/example.js",
+      import.meta.url,
+      {
+        "@nestjs/core": {
+          NestFactory: {
+            create: async () => 'mocked'
+          }
+        }
+      }
+    )
+
+    await example()
+
+    equal(1,1)
+  })
+})
diff --git a/tests/tests-pnpm/test/tsconfig.json b/tests/tests-pnpm/test/tsconfig.json
new file mode 100644
index 0000000..0d4681f
--- /dev/null
+++ b/tests/tests-pnpm/test/tsconfig.json
@@ -0,0 +1,10 @@
+{
+  "compilerOptions": {
+    "target": "ES2022",
+    "module": "Node16",
+    "moduleResolution": "Node16",
+    "experimentalDecorators": true,
+    "forceConsistentCasingInFileNames": true,
+    "strict": true,
+  }
+}
diff --git a/tests/tests-pnpm/ts-node.register.mjs b/tests/tests-pnpm/ts-node.register.mjs
new file mode 100644
index 0000000..2dd25be
--- /dev/null
+++ b/tests/tests-pnpm/ts-node.register.mjs
@@ -0,0 +1,6 @@
+// https://github.com/TypeStrong/ts-node/issues/2100
+
+import { pathToFileURL } from "node:url"
+import { register } from "node:module"
+
+register("ts-node/esm", pathToFileURL("./"))