diff --git a/src/specklepy/objects/other.py b/src/specklepy/objects/other.py
index 76a01e46..5a2576e4 100644
--- a/src/specklepy/objects/other.py
+++ b/src/specklepy/objects/other.py
@@ -303,19 +303,9 @@ class RevitParameter(Base, speckle_type="Objects.BuiltElements.Revit.Parameter")
     isTypeParameter: bool = False
 
 
-@deprecated(version="2.20", reason="Namespace changed, collectionType deprecated")
 class Collection(
     Base, speckle_type="Speckle.Core.Models.Collection", detachable={"elements"}
 ):
     name: Optional[str] = None
     collectionType: Optional[str] = None
     elements: Optional[List[Base]] = None
-
-
-class Collection(  # noqa: F811
-    Base,
-    speckle_type="Speckle.Core.Models.Collections.Collection",
-    detachable={"elements"},
-):
-    name: Optional[str] = None
-    elements: Optional[List[Base]]