diff --git a/pyproject.toml b/pyproject.toml
index 5610b82..e21d989 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -14,7 +14,7 @@ numba = ">=0.56.4"
 pygeodesy = "*"
 
 [tool.poetry.dev-dependencies]
-black = "24.4.2"
+black = "24.8.0"
 coverage = { version = "*", extras = ['toml'] }
 flake8 = "7.0.0"
 flake8-bugbear = "24.2.6"