diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index 89fb994..d2e0f0a 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -11,6 +11,6 @@ repos:
     exclude: docs
 
 - repo: https://github.com/psf/black
-  rev: "21.12b0"
+  rev: "22.1.0"
   hooks:
   - id: black
diff --git a/docs/conf.py b/docs/conf.py
index 4bac22b..8c63eb0 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -17,8 +17,8 @@
 templates_path = ["_templates"]
 master_doc = "index"
 
-project = u"Daft"
-copyright = u"2012-2021, Daft Developers"
+project = "Daft"
+copyright = "2012-2021, Daft Developers"
 version = __version__
 release = __version__
 
diff --git a/test/test_examples.py b/test/test_examples.py
index 81eaab4..d655f03 100644
--- a/test/test_examples.py
+++ b/test/test_examples.py
@@ -435,7 +435,7 @@ def recurse(pgm, nodename, level, c):
             pgm.add_node(
                 r1nodename,
                 r"reduce",
-                2 ** level * (r + 0.5) - 0.5,
+                2**level * (r + 0.5) - 0.5,
                 3 - 0.7 * level,
                 aspect=1.9,
             )