diff --git a/pyproject.toml b/pyproject.toml
index 2ab49f450..0c36698d1 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -294,7 +294,7 @@ dev = [
     "freezegun==1.2.2",
     "furo==2023.9.10",
     "mypy==1.7.0",
-    "pdm==2.10.3",
+    "pdm==2.10.4",
     "pip_check_reqs==2.5.3",
     "pydocstyle==6.3",
     "pyenchant==3.2.2",