diff --git a/tests/fixtures/invalid.env b/tests/fixtures/invalid.env
new file mode 100644
index 0000000..e9a904d
--- /dev/null
+++ b/tests/fixtures/invalid.env
@@ -0,0 +1,3 @@
+PORT=invalid_port
+NODE_ENV=invalid_env
+DATABASE_URL=not-a-url