diff --git a/py-oxbow/pyproject.toml b/py-oxbow/pyproject.toml
index ce85622..dbc3598 100644
--- a/py-oxbow/pyproject.toml
+++ b/py-oxbow/pyproject.toml
@@ -36,7 +36,7 @@ issues = "https://github.com/abdenlab/oxbow/issues"
 
 [dependency-groups]
 dev = [
-    "debugpy==1.8.20",
+    "debugpy==1.8.21",
     "pytest>=8.3.5",
     "pytest-manifest==1.0",
     "pytest-mock",