diff --git a/papermill/tests/test_translators.py b/papermill/tests/test_translators.py
index 0edc1f07..8ab4b560 100644
--- a/papermill/tests/test_translators.py
+++ b/papermill/tests/test_translators.py
@@ -82,6 +82,10 @@ def test_translate_comment_python(test_input, expected):
             "a: List[str] = ['this', 'is', 'a', 'string', 'list'] # Nice variable a",
             [Parameter("a", "List[str]", "['this', 'is', 'a', 'string', 'list']", "Nice variable a")],
         ),
+        (
+            "a: datetime.date = '2024-01-01' # Nice variable a",
+            [Parameter("a", "datetime.date", "'2024-01-01'", "Nice variable a")],
+        ),
         (
             "a: List[str] = [\n    'this', # First\n    'is',\n    'a',\n    'string',\n    'list' # Last\n] # Nice variable a",  # noqa
             [Parameter("a", "List[str]", "['this','is','a','string','list']", "Nice variable a")],
diff --git a/papermill/translators.py b/papermill/translators.py
index 1cb43d89..ee0877f6 100644
--- a/papermill/translators.py
+++ b/papermill/translators.py
@@ -143,7 +143,7 @@ def inspect(cls, parameters_cell):
 class PythonTranslator(Translator):
     # Pattern to capture parameters within cell input
     PARAMETER_PATTERN = re.compile(
-        r"^(?P<target>\w[\w_]*)\s*(:\s*[\"']?(?P<annotation>\w[\w_\[\],\s]*)[\"']?\s*)?=\s*(?P<value>.*?)(\s*#\s*(type:\s*(?P<type_comment>[^\s]*)\s*)?(?P<help>.*))?$"
+        r"^(?P<target>\w[\w_]*)\s*(:\s*[\"']?(?P<annotation>\w[\w_\[\],\s\.]*)[\"']?\s*)?=\s*(?P<value>.*?)(\s*#\s*(type:\s*(?P<type_comment>[^\s]*)\s*)?(?P<help>.*))?$"
     )
 
     @classmethod