diff --git a/glob/manager_core.py b/glob/manager_core.py
index b4092e2c..097a723a 100644
--- a/glob/manager_core.py
+++ b/glob/manager_core.py
@@ -23,7 +23,7 @@ sys.path.append(glob_path)
 import cm_global
 from manager_util import *
 
-version = [2, 48, 3]
+version = [2, 48, 4]
 version_str = f"V{version[0]}.{version[1]}" + (f'.{version[2]}' if len(version) > 2 else '')
 
 
@@ -405,8 +405,14 @@ def execute_install_script(url, repo_path, lazy_mode=False, instant_execution=Fa
             with open(requirements_path, "r") as requirements_file:
                 for line in requirements_file:
                     package_name = remap_pip_package(line.strip())
+
                     if package_name and not package_name.startswith('#'):
-                        install_cmd = [sys.executable, "-m", "pip", "install", package_name]
+                        if '--index-url' in package_name:
+                            s = package_name.split('--index-url')
+                            install_cmd = [sys.executable, "-m", "pip", "install", s[0].strip(), '--index-url', s[1].strip()]
+                        else:
+                            install_cmd = [sys.executable, "-m", "pip", "install", package_name]
+
                         if package_name.strip() != "" and not package_name.startswith('#'):
                             try_install_script(url, repo_path, install_cmd, instant_execution=instant_execution)
 
@@ -1215,3 +1221,4 @@ def unzip(model_path):
     os.remove(model_path)
     return True
 
+
diff --git a/prestartup_script.py b/prestartup_script.py
index 17f7fd84..5aede7e2 100644
--- a/prestartup_script.py
+++ b/prestartup_script.py
@@ -532,7 +532,12 @@ if os.path.exists(restore_snapshot_path):
                             package_name = remap_pip_package(line.strip())
                             if package_name and not is_installed(package_name):
                                 if not package_name.startswith('#'):
-                                    install_cmd = [sys.executable, "-m", "pip", "install", package_name]
+                                    if '--index-url' in package_name:
+                                        s = package_name.split('--index-url')
+                                        install_cmd = [sys.executable, "-m", "pip", "install", s[0].strip(), '--index-url', s[1].strip()]
+                                    else:
+                                        install_cmd = [sys.executable, "-m", "pip", "install", package_name]
+
                                     this_exit_code += process_wrap(install_cmd, repo_path)
 
                 if os.path.exists(install_script_path) and f'{repo_path}/install.py' not in processed_install:
@@ -575,7 +580,12 @@ def execute_lazy_install_script(repo_path, executable):
             for line in requirements_file:
                 package_name = remap_pip_package(line.strip())
                 if package_name and not is_installed(package_name):
-                    install_cmd = [executable, "-m", "pip", "install", package_name]
+                    if '--index-url' in package_name:
+                        s = package_name.split('--index-url')
+                        install_cmd = [sys.executable, "-m", "pip", "install", s[0].strip(), '--index-url', s[1].strip()]
+                    else:
+                        install_cmd = [sys.executable, "-m", "pip", "install", package_name]
+
                     process_wrap(install_cmd, repo_path)
 
     if os.path.exists(install_script_path) and f'{repo_path}/install.py' not in processed_install:
diff --git a/pyproject.toml b/pyproject.toml
index 10bf1e2d..1aef3a9c 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,7 +1,7 @@
 [project]
 name = "comfyui-manager"
 description = "ComfyUI-Manager provides features to install and manage custom nodes for ComfyUI, as well as various functionalities to assist with ComfyUI."
-version = "2.48.3"
+version = "2.48.4"
 license = { file = "LICENSE.txt" }
 dependencies = ["GitPython", "PyGithub", "matrix-client==0.4.0", "transformers", "huggingface-hub>0.20", "typer", "rich", "typing-extensions"]