CPU build fails on step 11/18 installing requierements

[enric1994]

$ docker-compose build sova-tts

...
Step 11/18 : RUN pip3 install -r requirements.txt
 ---> Running in 17d95bfc1375
Obtaining TPS from git+https://github.com/sovaai/[email protected]#egg=TPS (from -r requirements.txt (line 19))
  Cloning https://github.com/sovaai/sova-tts-tps (to revision v1.1.0) to ./src/tps
  Running command git clone -q https://github.com/sovaai/sova-tts-tps /sova-tts/src/tps
  Running command git checkout -q 9afd2e320290ff494919e161ef7819c7ce3c5e1e
Collecting Flask==1.1.1
  Downloading Flask-1.1.1-py2.py3-none-any.whl (94 kB)
Collecting Flask-Cors==3.0.9
  Downloading Flask_Cors-3.0.9-py2.py3-none-any.whl (14 kB)
Collecting gunicorn==19.9.0
  Downloading gunicorn-19.9.0-py2.py3-none-any.whl (112 kB)
Collecting uuid==1.30
  Downloading uuid-1.30.tar.gz (5.8 kB)
Collecting bs4==0.0.1
  Downloading bs4-0.0.1.tar.gz (1.1 kB)
Collecting numpy==1.19.1
  Downloading numpy-1.19.1.zip (7.3 MB)
  Installing build dependencies: started
  Installing build dependencies: finished with status 'done'
  Getting requirements to build wheel: started
  Getting requirements to build wheel: finished with status 'done'
    Preparing wheel metadata: started
    Preparing wheel metadata: still running...
    Preparing wheel metadata: finished with status 'done'
ERROR: Could not find a version that satisfies the requirement torch==1.7.1 (from versions: 0.1.2, 0.1.2.post1, 0.1.2.post2)
ERROR: No matching distribution found for torch==1.7.1
The command '/bin/sh -c pip3 install -r requirements.txt' returned a non-zero code: 1
ERROR: Service 'sova-tts' failed to build : Build failed```