fix (#929)

Author: IlyasMoutawwakil

setup.py

@@ -29,7 +29,7 @@
 INSTALL_REQUIRE = [
     "torch>=1.11",
     "transformers>=4.36,<4.46",
-    "optimum@git+https://github.com/huggingface/optimum.git@update-diffusers-mixins",
+    "optimum@git+https://github.com/huggingface/optimum.git",
     "datasets>=1.4.0",
     "sentencepiece",
     "setuptools",