diff --git a/elastalert/test_rule.py b/elastalert/test_rule.py
index 9bb16560..951afe14 100644
--- a/elastalert/test_rule.py
+++ b/elastalert/test_rule.py
@@ -137,7 +137,7 @@ def _parse_args(self, args: list) -> argparse.Namespace:
 
         return parsed_args
 
-    def str_to_ts(self, input: str) -> datetime:
+    def str_to_ts(self, input: str) -> datetime.datetime:
         if input == "NOW":
             return self.ts_now
 
@@ -148,7 +148,7 @@ def str_to_ts(self, input: str) -> datetime:
                 f"Input is not a valid ISO8601 timestamp (YYYY-MM-DDTHH:MM:SS+XX:00): {input}"
             )
 
-    def parse_starttime(self, timeframe=None) -> datetime:
+    def parse_starttime(self, timeframe=None) -> datetime.datetime:
         if self.args.start:
             try:
                 return self.str_to_ts(self.args.start)