diff --git a/unit/models/event.py b/unit/models/event.py
index a9d2e28..191a3dd 100644
--- a/unit/models/event.py
+++ b/unit/models/event.py
@@ -917,13 +917,26 @@ def from_json_api(_id, _type, attributes, relationships):
 
 
 class ListEventParams(UnitParams):
-    def __init__(self, limit: int = 100, offset: int = 0, type: Optional[List[str]] = None):
+    def __init__(
+        self,
+        limit: int = 100,
+        offset: int = 0,
+        type: Optional[str] = None,
+        since: Optional[str] = None,
+        until: Optional[str] = None,
+    ):
         self.limit = limit
         self.offset = offset
         self.type = type
+        self.since = since
+        self.until = until
 
     def to_dict(self) -> Dict:
         parameters = {"page[limit]": self.limit, "page[offset]": self.offset}
         if self.type:
             parameters["filter[type][]"] = self.type
+        if self.since:
+            parameters["filter[since]"] = self.since
+        if self.until:
+            parameters["filter[until]"] = self.until
         return parameters