diff --git a/modules/launch_utils.py b/modules/launch_utils.py
index 804b802057a..f689b92bf21 100644
--- a/modules/launch_utils.py
+++ b/modules/launch_utils.py
@@ -443,7 +443,7 @@ def ensure_build_dependencies():
         startup_timer.record("install clip")
 
     if not is_installed("open_clip"):
-        run_pip(f"install {openclip_package}", "open_clip")
+        run_pip(f"install --no-build-isolation {openclip_package}", "open_clip")
         startup_timer.record("install open_clip")
 
     if (not is_installed("xformers") or args.reinstall_xformers) and args.xformers:
@@ -468,14 +468,14 @@ def ensure_build_dependencies():
         requirements_file = os.path.join(script_path, requirements_file)
 
     if not requirements_met(requirements_file):
-        run_pip(f"install -r \"{requirements_file}\"", "requirements")
+        run_pip(f"install --no-build-isolation -r \"{requirements_file}\"", "requirements")
         startup_timer.record("install requirements")
 
     if not os.path.isfile(requirements_file_for_npu):
         requirements_file_for_npu = os.path.join(script_path, requirements_file_for_npu)
 
     if "torch_npu" in torch_command and not requirements_met(requirements_file_for_npu):
-        run_pip(f"install -r \"{requirements_file_for_npu}\"", "requirements_for_npu")
+        run_pip(f"install --no-build-isolation -r \"{requirements_file_for_npu}\"", "requirements_for_npu")
         startup_timer.record("install requirements_for_npu")
 
     if not args.skip_install: