diff --git a/pyproject.toml b/pyproject.toml
index 59f2d8d8f7..721a792ffb 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [tool.ruff]
 line-length = 160
-target-version = 'py37'
+target-version = 'py38'
 select = ['E', 'F']
 ignore = ['E741', 'E402', 'E722', 'E401']
 builtins = ['_']
@@ -10,7 +10,7 @@ builtins = ['_']
 "src/qt/__init__.py" = ["E501"]
 
 [tool.black]
-target-version = ['py37']
+target-version = ['py38']
 
 [tool.isort]
 profile = "black"
diff --git a/setup/check.py b/setup/check.py
index 2b64eb6bd3..352a8d5bfd 100644
--- a/setup/check.py
+++ b/setup/check.py
@@ -137,4 +137,4 @@ class UpgradeSourceCode(Command):
             if '/metadata/sources/' in q or '/store/stores/' in q:
                 continue
             files.append(q)
-        subprocess.call(['pyupgrade', '--py37-plus'] + files)
+        subprocess.call(['pyupgrade', '--py38-plus'] + files)