apply googleapis/synthtool#1916

noxfile.py

@@ -375,7 +375,16 @@ def docs(session):
 
  session.install("-e", ".")
  session.install(
- "sphinx==4.0.1",
+ # We need to pin to specific versions of the `sphinxcontrib-*` packages
+ # which still support sphinx 4.x.
+ # See https://github.com/googleapis/sphinx-docfx-yaml/issues/344
+ # and https://github.com/googleapis/sphinx-docfx-yaml/issues/345.
+ "sphinxcontrib-applehelp==1.0.4",
+ "sphinxcontrib-devhelp==1.0.2",
+ "sphinxcontrib-htmlhelp==2.0.1",
+ "sphinxcontrib-qthelp==1.0.3",
+ "sphinxcontrib-serializinghtml==1.1.5",
+ "sphinx==4.5.0",
  "alabaster",
  "recommonmark",
  )
@@ -401,6 +410,15 @@ def docfx(session):
 
  session.install("-e", ".")
  session.install(
+ # We need to pin to specific versions of the `sphinxcontrib-*` packages
+ # which still support sphinx 4.x.
+ # See https://github.com/googleapis/sphinx-docfx-yaml/issues/344
+ # and https://github.com/googleapis/sphinx-docfx-yaml/issues/345.
+ "sphinxcontrib-applehelp==1.0.4",
+ "sphinxcontrib-devhelp==1.0.2",
+ "sphinxcontrib-htmlhelp==2.0.1",
+ "sphinxcontrib-qthelp==1.0.3",
+ "sphinxcontrib-serializinghtml==1.1.5",
  "gcp-sphinx-docfx-yaml",
  "alabaster",
  "recommonmark",