diff --git a/routes/cookbook_routes.py b/routes/cookbook_routes.py
index cc245f0..e1e4972 100644
--- a/routes/cookbook_routes.py
+++ b/routes/cookbook_routes.py
@@ -383,11 +383,15 @@ def setup_cookbook_routes() -> APIRouter:
                 encoding="utf-8",
             )
             argv = [os.environ.get("ComSpec", "cmd.exe"), "/c", str(script_path)]
+        env = os.environ.copy()
+        env["PYTHONUTF8"] = "1"
+        env["PYTHONIOENCODING"] = "utf-8"
         proc = subprocess.Popen(
             argv,
             stdout=subprocess.DEVNULL,
             stderr=subprocess.DEVNULL,
             stdin=subprocess.DEVNULL,
+            env=env,
             **detached_popen_kwargs(),
         )
         pid_path.write_text(str(proc.pid), encoding="utf-8")