diff --git a/monitoring/monitorlib/geotemporal.py b/monitoring/monitorlib/geotemporal.py
index bb3e276ba3..166c66f539 100644
--- a/monitoring/monitorlib/geotemporal.py
+++ b/monitoring/monitorlib/geotemporal.py
@@ -222,13 +222,6 @@ def to_flight_planning_api(self) -> fp_api.Volume4D:
 
 
 class Volume4DCollection(List[Volume4D]):
-    def __init__(self, iterator: Iterator[dict]):
-        parsed_values = [
-            v if isinstance(v, Volume4D) else ImplicitDict.parse(v, Volume4D)
-            for v in iterator
-        ]
-        super(Volume4DCollection, self).__init__(parsed_values)
-
     def __add__(self, other):
         if isinstance(other, Volume4D):
             full_list = []
@@ -407,11 +400,4 @@ def has_active_volume(self, time_ref: datetime) -> bool:
 
 
 class Volume4DTemplateCollection(List[Volume4DTemplate]):
-    def __init__(self, iterator: Iterator[dict]):
-        parsed_values = [
-            v
-            if isinstance(v, Volume4DTemplate)
-            else ImplicitDict.parse(v, Volume4DTemplate)
-            for v in iterator
-        ]
-        super(Volume4DTemplateCollection, self).__init__(parsed_values)
+    pass
diff --git a/requirements.txt b/requirements.txt
index 26eec99065..5ced4d6f53 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -15,7 +15,7 @@ gevent==22.10.2  # mock_uss / gunicorn worker
 google-auth==1.6.3
 graphviz==0.20.1  # uss_qualifier
 gunicorn==20.1.0
-implicitdict==2.2.1
+implicitdict==2.3.0
 itsdangerous==2.0.1 # Version 2.1.0 is not compatible with flask 1.1.2.
 Jinja2==3.0.3 # See https://github.com/interuss/dss/issues/745
 jsonschema==4.17.3  # uss_qualifier