diff --git a/README.md b/README.md
index de19d5f..6172e59 100644
--- a/README.md
+++ b/README.md
@@ -170,7 +170,7 @@ Doc-Write, see: https://github.com/boxine/bx_py_utils/blob/master/bx_py_utils/do
 
 #### bx_py_utils.test_utils.datetime
 
-* [`parse_dt()`](https://github.com/boxine/bx_py_utils/blob/master/bx_py_utils/test_utils/datetime.py#L4-L15) - Helper for easy generate a `datetime` instance via string.
+* [`parse_dt()`](https://github.com/boxine/bx_py_utils/blob/master/bx_py_utils/test_utils/datetime.py#L5-L25) - Helper for easy generate a `datetime` instance via string.
 
 #### bx_py_utils.test_utils.deny_requests
 
diff --git a/bx_py_utils/__init__.py b/bx_py_utils/__init__.py
index 9f7684a..bf07c37 100644
--- a/bx_py_utils/__init__.py
+++ b/bx_py_utils/__init__.py
@@ -1 +1 @@
-__version__ = '104'
+__version__ = '105'
diff --git a/bx_py_utils/test_utils/datetime.py b/bx_py_utils/test_utils/datetime.py
index e1338ef..b3f8a41 100644
--- a/bx_py_utils/test_utils/datetime.py
+++ b/bx_py_utils/test_utils/datetime.py
@@ -1,4 +1,5 @@
 import datetime
+import sys
 
 
 def parse_dt(dtstr):
@@ -9,7 +10,16 @@ def parse_dt(dtstr):
     True
     >>> parse_dt('2020-01-01T00:00:00+0000')
     datetime.datetime(2020, 1, 1, 0, 0, tzinfo=datetime.timezone.utc)
+    >>> parse_dt('2020-01-02T03:04:05.678901+00:00')
+    datetime.datetime(2020, 1, 2, 3, 4, 5, 678901, tzinfo=datetime.timezone.utc)
     """
     if dtstr is None:
         return None
-    return datetime.datetime.strptime(dtstr, '%Y-%m-%dT%H:%M:%S%z')
+
+    try:
+        return datetime.datetime.fromisoformat(dtstr)
+    except ValueError:
+        if sys.version_info[:2] == (3, 10):
+            # Python 3.10 supports only formats emitted by date.isoformat() or datetime.isoformat() :(
+            return datetime.datetime.strptime(dtstr, '%Y-%m-%dT%H:%M:%S%z')
+        raise