diff --git a/pyproject.toml b/pyproject.toml
index 2835f49c4e..5b66352eca 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -79,7 +79,7 @@ test = [
 dev = [
   "pact-python[types]",
   "pact-python[test]",
-  "black          ==23.11.0",
+  "black          ==23.12.0",
   "ruff           ==0.1.7",
 ]