diff --git a/pyproject.toml b/pyproject.toml
index d385dc6e..e83bb2c7 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -41,7 +41,7 @@ dependencies = [
 optional-dependencies.dev = [
     "actionlint-py==1.7.4.18",
     "check-manifest==0.50",
-    "deptry==0.21.0",
+    "deptry==0.21.1",
     "doc8==1.1.2",
     "doccmd==2024.11.14",
     "docformatter==1.7.5",