--- a/.readthedocs.yaml	Wed Mar 30 21:15:15 2022 +0200
+++ b/.readthedocs.yaml	Thu Mar 31 15:10:12 2022 +0300
@@ -5,6 +5,10 @@
 # Required
 version: 2
 
+# Set the version of Python and other tools you might need
+build:
+  os: ubuntu-20.04
+
 # Build documentation in the docs/ directory with Sphinx
 sphinx:
    configuration: docs/conf.py
@@ -17,4 +21,4 @@
 #python:
 #   version: 3.7
 #   install:
-#   - requirements: docs/requirements.txt
\ No newline at end of file
+#   - requirements: docs/requirements.txt