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-rw-r--r--doc_requirements.txt2
1 files changed, 1 insertions, 1 deletions
diff --git a/doc_requirements.txt b/doc_requirements.txt
index 52b51cd6e..366658622 100644
--- a/doc_requirements.txt
+++ b/doc_requirements.txt
@@ -1,4 +1,4 @@
-sphinx>=2.2.0,<3.0
+sphinx>=2.2.0,<4.0
ipython
scipy
matplotlib