YOLOv5 requirements.txt download error on the ultralytics requirement

When I install the requirements I get this error, does anyone have any idea what it could be?

nvidia@nvidia:~/Desktop/yolov5$ pip3 install -r requirements.txt
Defaulting to user installation because normal site-packages is not writeable
Requirement already satisfied: gitpython>=3.1.18 in /home/nvidia/.local/lib/python3.6/site-packages (from -r requirements.txt (line 5)) (3.1.18)
Collecting matplotlib>=3.3
Using cached matplotlib-3.3.4.tar.gz (37.9 MB)
Preparing metadata (setup.py) … done
Requirement already satisfied: numpy>=1.18.5 in /usr/local/lib/python3.6/dist-packages (from -r requirements.txt (line 7)) (1.19.4)
Collecting opencv-python>=4.1.1
Using cached opencv-python-4.7.0.72.tar.gz (91.1 MB)
Installing build dependencies … done
Getting requirements to build wheel … done
Preparing metadata (pyproject.toml) … done
Requirement already satisfied: Pillow>=7.1.2 in /home/nvidia/.local/lib/python3.6/site-packages (from -r requirements.txt (line 9)) (8.4.0)
Collecting psutil
Using cached psutil-5.9.5.tar.gz (493 kB)
Installing build dependencies … done
Getting requirements to build wheel … done
Preparing metadata (pyproject.toml) … done
Requirement already satisfied: PyYAML>=5.3.1 in /home/nvidia/.local/lib/python3.6/site-packages (from -r requirements.txt (line 11)) (6.0)
Requirement already satisfied: requests>=2.23.0 in /home/nvidia/.local/lib/python3.6/site-packages (from -r requirements.txt (line 12)) (2.27.1)
Collecting scipy>=1.4.1
Using cached scipy-1.5.4-cp36-cp36m-manylinux2014_aarch64.whl (24.5 MB)
Collecting thop>=0.1.1
Using cached thop-0.1.1.post2209072238-py3-none-any.whl (15 kB)
Collecting tqdm>=4.64.0
Using cached tqdm-4.64.1-py2.py3-none-any.whl (78 kB)

ERROR: Could not find a version that satisfies the requirement ultralytics>=8.0.100 (from versions: none)
ERROR: No matching distribution found for ultralytics>=8.0.100