diff --git a/package.json b/package.json
index 37b5a89..6b5d140 100644
--- a/package.json
+++ b/package.json
@@ -68,7 +68,6 @@
     "@graphql-codegen/cli": "^7.0.0",
     "@tsconfig/node22": "^22.0.5",
     "@types/node": "^20.11.24",
-    "dotenv": "^16.4.5",
     "oxfmt": "^0.51.0",
     "oxlint": "^1.63.0",
     "oxlint-tsgolint": "^0.22.1",
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index fa2674b..2ed847a 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -31,9 +31,6 @@ importers:
       '@types/node':
         specifier: ^20.11.24
         version: 20.14.10
-      dotenv:
-        specifier: ^16.4.5
-        version: 16.4.5
       oxfmt:
         specifier: ^0.51.0
         version: 0.51.0
@@ -1525,10 +1522,6 @@ packages:
     resolution: {integrity: sha512-WkrWp9GR4KXfKGYzOLmTuGVi1UWFfws377n9cc55/tb6DuqyF6pcQ5AbiHEshaDpY9v6oaSr2XCDidGmMwdzIA==}
     engines: {node: '>=8'}
 
-  dotenv@16.4.5:
-    resolution: {integrity: sha512-ZmdL2rui+eB2YwhsWzjInR8LldtZHGDoQ1ugH85ppHKwpUHL7j7rN0Ti9NCnGiQbhaZ11FpR+7ao1dNsmduNUg==}
-    engines: {node: '>=12'}
-
   dotenv@8.6.0:
     resolution: {integrity: sha512-IrPdXQsk2BbzvCBGBOTmmSH5SodmqZNt4ERAZDmW4CT+tL8VtvinqywuANaFu4bOMWki16nqf0e4oC0QIaDr/g==}
     engines: {node: '>=10'}
@@ -4473,8 +4466,6 @@ snapshots:
     dependencies:
       path-type: 4.0.0
 
-  dotenv@16.4.5: {}
-
   dotenv@8.6.0: {}
 
   dset@3.1.4: {}
diff --git a/tests/integration/env.ts b/tests/integration/env.ts
index ce6a851..24c25c7 100644
--- a/tests/integration/env.ts
+++ b/tests/integration/env.ts
@@ -1,11 +1,8 @@
-import { configDotenv } from "dotenv";
 import { pino } from "pino";
 
 export const ROOT_TEST_BRANCH_PREFIX = process.env.ROOT_TEST_BRANCH_PREFIX!;
 export const ROOT_TEMP_DIRECTORY = process.env.ROOT_TEMP_DIRECTORY!;
 
-configDotenv();
-
 const GITHUB_TOKEN = process.env.GITHUB_TOKEN;
 if (!GITHUB_TOKEN) {
   throw new Error("GITHUB_TOKEN must be set");
diff --git a/vitest.integration.config.ts b/vitest.integration.config.ts
index aac645d..22dd3d3 100644
--- a/vitest.integration.config.ts
+++ b/vitest.integration.config.ts
@@ -1,18 +1,18 @@
 import { randomBytes } from "node:crypto";
 import os from "node:os";
 import path from "node:path";
+import { loadEnvFile } from "node:process";
 import { defineConfig } from "vitest/config";
 
-const ROOT_TEST_BRANCH_PREFIX =
-  process.env.ROOT_TEST_BRANCH_PREFIX ??
-  `test-${randomBytes(4).toString("hex")}`;
+try {
+  loadEnvFile();
+} catch {}
 
-const ROOT_TEMP_DIRECTORY =
-  process.env.ROOT_TEMP_DIRECTORY ??
-  path.join(os.tmpdir(), ROOT_TEST_BRANCH_PREFIX);
-
-process.env.ROOT_TEST_BRANCH_PREFIX = ROOT_TEST_BRANCH_PREFIX;
-process.env.ROOT_TEMP_DIRECTORY = ROOT_TEMP_DIRECTORY;
+process.env.ROOT_TEST_BRANCH_PREFIX ??= `test-${randomBytes(4).toString("hex")}`;
+process.env.ROOT_TEMP_DIRECTORY ??= path.join(
+  os.tmpdir(),
+  process.env.ROOT_TEST_BRANCH_PREFIX,
+);
 
 export default defineConfig({
   test: {