diff --git a/CI/requirements_ci.in b/CI/requirements_ci.in
index b95fdf60e..d4c6ec4ab 100644
--- a/CI/requirements_ci.in
+++ b/CI/requirements_ci.in
@@ -1,5 +1,5 @@
 bump-my-version==0.28.1
-deptry==0.21.0
+deptry==0.21.1
 flit==3.10.1
 pip==24.3.1
 pylint==3.3.1
diff --git a/pyproject.toml b/pyproject.toml
index f4029a8db..91f4f18da 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -65,7 +65,7 @@ dev = [
   "codespell ==2.3.0",
   "coverage[toml] >=7.5.0",
   "coveralls >=4.0.1", # coveralls is not yet compatible with Python 3.13
-  "deptry ==0.21.0",
+  "deptry ==0.21.1",
   "flake8 >=7.1.1",
   "flake8-rst-docstrings >=0.3.0",
   "h5netcdf>=1.3.0",