diff --git a/requirements.in b/requirements.in
index 7c227128..2c831120 100644
--- a/requirements.in
+++ b/requirements.in
@@ -255,7 +255,7 @@ patsy==1.0.2
     #   statsmodels
 pillow==12.0.0
     # via matplotlib
-platformdirs==4.5.0
+platformdirs==4.5.1
     # via
     #   tox
     #   virtualenv
diff --git a/requirements.txt b/requirements.txt
index 973a8f0f..f618a43d 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1548,9 +1548,9 @@ pillow==12.0.0 \
     # via
     #   -r requirements.in
     #   matplotlib
-platformdirs==4.5.0 \
-    --hash=sha256:70ddccdd7c99fc5942e9fc25636a8b34d04c24b335100223152c2803e4063312 \
-    --hash=sha256:e578a81bb873cbb89a41fcc904c7ef523cc18284b7e3b3ccf06aca1403b7ebd3
+platformdirs==4.5.1 \
+    --hash=sha256:61d5cdcc6065745cdd94f0f878977f8de9437be93de97c1c12f853c9c0cdcbda \
+    --hash=sha256:d03afa3963c806a9bed9d5125c8f4cb2fdaf74a55ab60e5d59b3fde758104d31
     # via
     #   -r requirements.in
     #   tox