diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index 899503663..15de1b273 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -1,13 +1,13 @@
 repos:
   - repo: https://github.com/psf/black
-    rev: 21.9b0
+    rev: 21.11b1
     hooks:
       - id: black
         args:
           - --safe
           - --quiet
           - --target-version
-          - py38
+          - py39
         files: ^((supervisor|tests)/.+)?[^/]+\.py$
   - repo: https://gitlab.com/pycqa/flake8
     rev: 3.8.3
diff --git a/requirements_tests.txt b/requirements_tests.txt
index c0678c10f..28c9bb04a 100644
--- a/requirements_tests.txt
+++ b/requirements_tests.txt
@@ -1,4 +1,4 @@
-black==21.9b0
+black==21.11b1
 codecov==2.1.12
 coverage==6.2
 flake8-docstrings==1.6.0