From 9eeccfa22a0a92f9912aabc363b35a987e74b19f Mon Sep 17 00:00:00 2001
From: Ned Deily <nad@python.org>
Date: Thu, 25 Jun 2020 07:22:10 -0400
Subject: [PATCH] bpo-40204: Pin Sphinx version to 2.3.1 in ``Doc/Makefile``.
 (GH-21141)

---
 Doc/Makefile                                                    | 2 +-
 Misc/NEWS.d/next/Build/2020-06-25-06-59-13.bpo-40204.GpD04D.rst | 1 +
 2 files changed, 2 insertions(+), 1 deletion(-)
 create mode 100644 Misc/NEWS.d/next/Build/2020-06-25-06-59-13.bpo-40204.GpD04D.rst

diff --git a/Doc/Makefile b/Doc/Makefile
index 2169f1a3695495..b8ca1edfbc60a5 100644
--- a/Doc/Makefile
+++ b/Doc/Makefile
@@ -143,7 +143,7 @@ clean:
 venv:
 	$(PYTHON) -m venv $(VENVDIR)
 	$(VENVDIR)/bin/python3 -m pip install -U pip setuptools
-	$(VENVDIR)/bin/python3 -m pip install -U Sphinx==1.8.2 blurb python-docs-theme
+	$(VENVDIR)/bin/python3 -m pip install -U Sphinx==2.3.1 blurb python-docs-theme
 	@echo "The venv has been created in the $(VENVDIR) directory"
 
 dist:
diff --git a/Misc/NEWS.d/next/Build/2020-06-25-06-59-13.bpo-40204.GpD04D.rst b/Misc/NEWS.d/next/Build/2020-06-25-06-59-13.bpo-40204.GpD04D.rst
new file mode 100644
index 00000000000000..25a6d751e5f45c
--- /dev/null
+++ b/Misc/NEWS.d/next/Build/2020-06-25-06-59-13.bpo-40204.GpD04D.rst
@@ -0,0 +1 @@
+Pin Sphinx version to 2.3.1 in ``Doc/Makefile``.