diff --git a/pyproject.toml b/pyproject.toml
index 7507f89b8..0d1479950 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -277,7 +277,7 @@ dev = [
     "Sphinx-Substitution-Extensions==2022.2.16",
     "Sphinx==6.1.3",
     "VWS-Test-Fixtures==2023.3.5",
-    "black==23.1.0",
+    "black==23.3.0",
     "check-manifest==0.49",
     "dirty-equals==0.5.0",
     # We pin to an old doc8 to avoid version conflicts with sphinx_toolbox.