update to 0.9.8

setup.py

@@ -42,7 +42,7 @@
     # For a discussion on single-sourcing the version across setup.py and the
     # project code, see
     # https://packaging.python.org/guides/single-sourcing-package-version/
-    version='0.9.7',  # Required
+    version='0.9.8',  # Required
     # This is a one-line description or tagline of what your project does. This
     # corresponds to the "Summary" metadata field:
     # https://packaging.python.org/specifications/core-metadata/#summary
@@ -147,6 +147,7 @@
         'loguru',
         'minify-html',
         'pillow',
+        'python-dateutil',
     ],
     # Optional
     # List additional groups of dependencies here (e.g. development