if you wanna install spesific version, change git tag on Dockerfile file line 50.
All tags: https://github.com/movabletype/movabletype/releases
git clone https://github.com/amanualt/movabletype-Docker.git
cd movabletype-Docker
git clone https://github.com/movabletype/movabletype.git
cd movabletype
git checkout tags/mt6.3.5 && cd ..
mv movabletype/* movabletype/.* MT-6.3.5/
docker-compose up