diff --git a/requirements-healpy.txt b/requirements-healpy.txt
index 2fd4528c4..7c0c114f3 100644
--- a/requirements-healpy.txt
+++ b/requirements-healpy.txt
@@ -23,7 +23,7 @@ pooch==1.9.0 ; python_version >= "3.11" and python_version < "3.15"
 pyerfa==2.0.1.5 ; python_version >= "3.11" and python_version < "3.15"
 pyparsing==3.3.3 ; python_version >= "3.11" and python_version < "3.15"
 pyshtools==4.14.1 ; python_version >= "3.11" and python_version < "3.15"
-python-dateutil==2.9.0.post0 ; python_version >= "3.11" and python_version < "3.15"
+python-dateutil==3.0.0 ; python_version >= "3.11" and python_version < "3.15"
 pyyaml==6.0.3 ; python_version >= "3.11" and python_version < "3.15"
 requests==2.34.2 ; python_version >= "3.11" and python_version < "3.15"
 scipy==1.17.1 ; python_version >= "3.11" and python_version < "3.15"
diff --git a/requirements-jax.txt b/requirements-jax.txt
index 3576f9237..e44557a8e 100644
--- a/requirements-jax.txt
+++ b/requirements-jax.txt
@@ -27,7 +27,7 @@ pooch==1.9.0 ; python_version >= "3.11" and python_version < "3.15"
 pyerfa==2.0.1.5 ; python_version >= "3.11" and python_version < "3.15"
 pyparsing==3.3.3 ; python_version >= "3.11" and python_version < "3.15"
 pyshtools==4.14.1 ; python_version >= "3.11" and python_version < "3.15"
-python-dateutil==2.9.0.post0 ; python_version >= "3.11" and python_version < "3.15"
+python-dateutil==3.0.0 ; python_version >= "3.11" and python_version < "3.15"
 pyyaml==6.0.3 ; python_version >= "3.11" and python_version < "3.15"
 requests==2.34.2 ; python_version >= "3.11" and python_version < "3.15"
 scipy==1.17.1 ; python_version >= "3.11" and python_version < "3.15"
diff --git a/requirements-pytorch.txt b/requirements-pytorch.txt
index c801ccbd9..d9e665128 100644
--- a/requirements-pytorch.txt
+++ b/requirements-pytorch.txt
@@ -46,7 +46,7 @@ pooch==1.9.0 ; python_version >= "3.11" and python_version < "3.15"
 pyerfa==2.0.1.5 ; python_version >= "3.11" and python_version < "3.15"
 pyparsing==3.3.3 ; python_version >= "3.11" and python_version < "3.15"
 pyshtools==4.14.1 ; python_version >= "3.11" and python_version < "3.15"
-python-dateutil==2.9.0.post0 ; python_version >= "3.11" and python_version < "3.15"
+python-dateutil==3.0.0 ; python_version >= "3.11" and python_version < "3.15"
 pyyaml==6.0.3 ; python_version >= "3.11" and python_version < "3.15"
 requests==2.34.2 ; python_version >= "3.11" and python_version < "3.15"
 scipy==1.17.1 ; python_version >= "3.11" and python_version < "3.15"