diff --git a/app/doctor/dependencies.py b/app/doctor/dependencies.py
index 5def0e774..d5a28db20 100644
--- a/app/doctor/dependencies.py
+++ b/app/doctor/dependencies.py
@@ -1,11 +1,18 @@
 """主程序运行依赖的轻量可用性探针。"""
 
 import argparse
+import os
+import shutil
 from importlib import import_module
 import sys
 import sysconfig
 import warnings
 
+if os.name == "nt":
+    psql_exe = shutil.which("psql")
+    if psql_exe:
+        getattr(os, "add_dll_directory")(os.path.dirname(psql_exe))
+
 
 CORE_MODULES = (
     "alembic",