diff --git a/pyproject.toml b/pyproject.toml
index 3250b90..65fdc1e 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -11,7 +11,7 @@ packages = [{include = "frontier_api"}]
 python = "^3.10"
 certifi = ">= 14.5.14"
 frozendict = "~2.3.4"
-python-dateutil = "~2.7.0"
+python-dateutil = "~2.8.2"
 setuptools = ">= 21.0.0"
 typing_extensions = "^4.3.0"
 urllib3 = "~1.26.7"
diff --git a/requirements.txt b/requirements.txt
index 3cb6612..0d03318 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,6 +1,6 @@
 certifi >= 14.5.14
 frozendict ~= 2.3.4
-python-dateutil ~= 2.7.0
+python-dateutil ~= 2.8.2
 setuptools >= 21.0.0
 typing_extensions ~= 4.3.0
 urllib3 ~= 1.26.7