diff --git a/requirements/constraints.txt b/requirements/constraints.txt
index 94120d387f9..18e66858237 100644
--- a/requirements/constraints.txt
+++ b/requirements/constraints.txt
@@ -172,7 +172,7 @@ pytest-mock==3.14.0
     # via
     #   -r requirements/lint.in
     #   -r requirements/test.in
-python-dateutil==2.8.2
+python-dateutil==2.9.0.post0
     # via freezegun
 python-on-whales==0.72.0
     # via
diff --git a/requirements/dev.txt b/requirements/dev.txt
index 88a840bf919..cc3232a38b3 100644
--- a/requirements/dev.txt
+++ b/requirements/dev.txt
@@ -167,7 +167,7 @@ pytest-mock==3.14.0
     # via
     #   -r requirements/lint.in
     #   -r requirements/test.in
-python-dateutil==2.8.2
+python-dateutil==2.9.0.post0
     # via freezegun
 python-on-whales==0.72.0
     # via
diff --git a/requirements/test.txt b/requirements/test.txt
index abb5adf5ff9..b4ceccd0d34 100644
--- a/requirements/test.txt
+++ b/requirements/test.txt
@@ -80,7 +80,7 @@ pytest-cov==5.0.0
     # via -r requirements/test.in
 pytest-mock==3.14.0
     # via -r requirements/test.in
-python-dateutil==2.8.2
+python-dateutil==2.9.0.post0
     # via freezegun
 python-on-whales==0.72.0
     # via -r requirements/test.in