diff --git a/changelog.txt b/changelog.txt
index c8494410f..16cac66c2 100644
--- a/changelog.txt
+++ b/changelog.txt
@@ -49,6 +49,7 @@ Fixed
 Removed
 +++++++
 
+ - Removed upper bound of Python 4 on ``python_requires`` (#781).
  - Dropped support for Python 3.6 and Python 3.7 (#715) following the recommended support schedules of `NEP 29 <https://numpy.org/neps/nep-0029-deprecation_policy.html>`__.
  - Dropped dependency on ``deprecation`` package (#687, #718).
 
diff --git a/contributors.yaml b/contributors.yaml
index 6c8f0594f..6efafdaae 100644
--- a/contributors.yaml
+++ b/contributors.yaml
@@ -114,4 +114,9 @@ contributors:
   -
     family-names: Tork
     given-names: Parisa
+  -
+    family-names: "Feickert"
+    given-names: "Matthew"
+    affiliation: "University of Wisconsin-Madison"
+    orcid: "https://orcid.org/0000-0003-4124-7862"
 ...
diff --git a/setup.py b/setup.py
index cbccda328..828d8b5cf 100644
--- a/setup.py
+++ b/setup.py
@@ -60,7 +60,7 @@
     install_requires=requirements,
     # Supported versions are determined according to NEP 29.
     # https://numpy.org/neps/nep-0029-deprecation_policy.html
-    python_requires=">=3.8, <4",
+    python_requires=">=3.8",
     extras_require={"db": ["pymongo>=3.0"], "mpi": ["mpi4py"], "h5": ["h5py"]},
     entry_points={"console_scripts": ["signac = signac.__main__:main"]},
 )