diff --git a/.builds/tests-release.yaml b/.builds/tests-release.yaml
index ef5c4d2..dce61f7 100644
--- a/.builds/tests-release.yaml
+++ b/.builds/tests-release.yaml
@@ -29,11 +29,6 @@ tasks:
       export PATH=$PATH:~/.local/bin/
       make -e ci-test
       make -e ci-test-storage
-  - style: |
-      cd vdirsyncer
-      # Non-system python is used for packages:
-      export PATH=$PATH:~/.local/bin/
-      make -e style
   - check-secrets: |
       # Stop here if this is a PR. PRs can't run with the below secrets.
       [ -f ~/fastmail-secrets ] || complete-build
diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index 69f5a3f..7ef5958 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -23,7 +23,7 @@ repos:
       - id: isort
         name: isort (python)
   - repo: https://github.com/asottile/pyupgrade
-    rev: v2.25.0
+    rev: v2.26.0
     hooks:
     -   id: pyupgrade
         args: [--py37-plus]
diff --git a/tests/system/utils/test_main.py b/tests/system/utils/test_main.py
index 4403582..d7c25fd 100644
--- a/tests/system/utils/test_main.py
+++ b/tests/system/utils/test_main.py
@@ -1,5 +1,4 @@
 import logging
-import sys
 
 import aiohttp
 import click_log
@@ -103,10 +102,7 @@ def test_open_graphical_browser(monkeypatch):
 
     # Just assert that this internal attribute still exists and behaves the way
     # expected
-    if sys.version_info < (3, 7):
-        iter(webbrowser._tryorder)
-    else:
-        assert webbrowser._tryorder is None
+    assert webbrowser._tryorder is None
 
     monkeypatch.setattr("webbrowser._tryorder", [])