1 files changed, 1 insertions, 1 deletions
diff --git a/setup.py b/setup.py
index d079f9d..3351e2f 100644
--- a/setup.py
+++ b/setup.py
@@ -43,7 +43,7 @@ setup(
     author_email="pav@iki.fi",
     url="https://numpydoc.readthedocs.io",
     license="BSD",
-    install_requires=["sphinx >= 1.8", 'Jinja2>=2.10'],
+    install_requires=["sphinx>=1.8", 'Jinja2>=2.10,<3.1'],
     python_requires=">=3.7",
     extras_require={
         "testing": [