diff --git a/dev-requirements.txt b/dev-requirements.txt
index f37238e..bee058d 100644
--- a/dev-requirements.txt
+++ b/dev-requirements.txt
@@ -9,4 +9,4 @@ tox==4.6.3
 sphinx-autobuild==2021.3.14
 sphinx_copybutton==0.5.2
 pydata_sphinx_theme==0.13.1
-black==23.3.0
+black==23.9.0