diff --git a/requirements.txt b/requirements.txt
index c197d3c..9637c69 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,2 +1,2 @@
-python-dateutil~=2.8.1
+python-dateutil>=2.8.1
 setuptools~=40.6.2
\ No newline at end of file
diff --git a/setup.py b/setup.py
index 2057954..35af570 100644
--- a/setup.py
+++ b/setup.py
@@ -1,38 +1,38 @@
-from setuptools import find_packages, setup
-import os
-
-version = {}
-with open(os.path.abspath("src"+os.path.sep+"pyawscron"+os.path.sep+"version.py")) as fp:
-    exec(fp.read(), version)
-
-try:
-    assert "." in version['__version__']
-except AssertionError:
-    raise AssertionError("Failed to obtain version.")
-
-with open("README.md", "r", encoding="utf-8") as fh:
-    long_description = fh.read()
-
-if __name__ == "__main__":
-    setup(
-        name="pyawscron",
-        version=version['__version__'],
-        author="Michael Martin",
-        author_email="pitchblack408@gmail.com",
-        description="An AWS Cron Parser",
-        long_description=long_description,
-        long_description_content_type="text/markdown",
-        url="https://github.com/pitchblack408/pyawscron",
-        project_urls={
-            "Bug Tracker": "https://github.com/pitchblack408/pyawscron/issues",
-        },
-        classifiers=[
-            "Programming Language :: Python :: 3",
-            "License :: OSI Approved :: BSD License",
-            "Operating System :: OS Independent",
-        ],
-        package_dir={"": "src"},
-        packages=find_packages(where="src"),
-        python_requires=">=3.6",
-        install_requires=["python-dateutil~=2.8.1"],
-    )
+from setuptools import find_packages, setup
+import os
+
+version = {}
+with open(os.path.abspath("src"+os.path.sep+"pyawscron"+os.path.sep+"version.py")) as fp:
+    exec(fp.read(), version)
+
+try:
+    assert "." in version['__version__']
+except AssertionError:
+    raise AssertionError("Failed to obtain version.")
+
+with open("README.md", "r", encoding="utf-8") as fh:
+    long_description = fh.read()
+
+if __name__ == "__main__":
+    setup(
+        name="pyawscron",
+        version=version['__version__'],
+        author="Michael Martin",
+        author_email="pitchblack408@gmail.com",
+        description="An AWS Cron Parser",
+        long_description=long_description,
+        long_description_content_type="text/markdown",
+        url="https://github.com/pitchblack408/pyawscron",
+        project_urls={
+            "Bug Tracker": "https://github.com/pitchblack408/pyawscron/issues",
+        },
+        classifiers=[
+            "Programming Language :: Python :: 3",
+            "License :: OSI Approved :: BSD License",
+            "Operating System :: OS Independent",
+        ],
+        package_dir={"": "src"},
+        packages=find_packages(where="src"),
+        python_requires=">=3.6",
+        install_requires=["python-dateutil>=2.8.1"],
+    )