diff --git a/pyproject.toml b/pyproject.toml
index e4eed4745..da51b8523 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -52,7 +52,7 @@ tests = [
     "grpcio-health-checking==1.48.2",
     "numpy==2.1.1",
     "pandas==2.2.2",
-    "platformdirs==4.3.3",
+    "platformdirs==4.3.6",
     "protobuf==5.28.1",
     "six==1.16.0",
     "tqdm==4.66.5",