Add a comment for XML requirements
@@ -22,11 +22,15 @@ jsonfield==2.0.2
requests==2.21.0
requests-toolbelt==0.9.1
slumber==0.7.1
-lxml==4.3.1
-defusedxml==0.5.0
pyyaml==3.13
Pygments==2.3.1
+# These has to be removed once APIv1 is removed
+# https://github.com/rtfd/readthedocs.org/pull/5293
+# https://github.com/rtfd/readthedocs.org/pull/3082
+lxml==4.3.1
+defusedxml==0.5.0
+
# Basic tools
# Redis 3.x has an incompatible change and fails
# https://stackoverflow.com/questions/53331405/django-compress-error-invalid-input-of-type-cachekey
