diff --git a/src/planscape/datasets/serializers.py b/src/planscape/datasets/serializers.py
index 322fde529..d1a8dbfff 100644
--- a/src/planscape/datasets/serializers.py
+++ b/src/planscape/datasets/serializers.py
@@ -6,15 +6,14 @@
 
 
 class DatasetSerializer(serializers.ModelSerializer):
-    organization = UUIDRelatedField(
-        uuid_field="uuid",
+    organization = serializers.PrimaryKeyRelatedField(
         queryset=Organization.objects.all(),
     )
 
     class Meta:
         model = Dataset
         fields = (
-            "uuid",
+            "id",
             "organization",
             "name",
             "type",
@@ -27,7 +26,7 @@ class DatasetDetailSerializer(DatasetSerializer):
     class Meta:
         model = Dataset
         fields = (
-            "uuid",
+            "id",
             "created_at",
             "created_by",
             "updated_at",
diff --git a/src/planscape/datasets/tests/test_serializers.py b/src/planscape/datasets/tests/test_serializers.py
index 4ab566af7..05f3f7f66 100644
--- a/src/planscape/datasets/tests/test_serializers.py
+++ b/src/planscape/datasets/tests/test_serializers.py
@@ -27,8 +27,8 @@ def setUp(self):
     def test_dataset_serializer(self):
         serializer = DatasetSerializer(instance=self.dataset)
         data = serializer.data
-        self.assertEqual(data["uuid"], str(self.dataset.uuid))
-        self.assertEqual(data["organization"], str(self.dataset.organization.uuid))
+        self.assertEqual(data["id"], self.dataset.id)
+        self.assertEqual(data["organization"], self.dataset.organization.id)
         self.assertEqual(data["name"], self.dataset.name)
         self.assertEqual(data["type"], self.dataset.type)
         self.assertEqual(data["blob_status"], self.dataset.blob_status)
@@ -37,8 +37,8 @@ def test_dataset_serializer(self):
     def test_dataset_detail_serializer(self):
         serializer = DatasetDetailSerializer(instance=self.dataset)
         data = serializer.data
-        self.assertEqual(data["uuid"], str(self.dataset.uuid))
-        self.assertEqual(data["organization"], str(self.dataset.organization.uuid))
+        self.assertEqual(data["id"], self.dataset.id)
+        self.assertEqual(data["organization"], self.dataset.organization.id)
         self.assertEqual(data["name"], self.dataset.name)
         self.assertEqual(data["type"], self.dataset.type)
         self.assertEqual(data["blob_status"], self.dataset.blob_status)
diff --git a/src/planscape/goals/filters.py b/src/planscape/goals/filters.py
index eacafa8de..a793e527e 100644
--- a/src/planscape/goals/filters.py
+++ b/src/planscape/goals/filters.py
@@ -9,13 +9,11 @@ class TreatmentGoalFilterSet(filters.FilterSet):
     organization = filters.ModelChoiceFilter(
         queryset=Organization.objects.all(),
         field_name="project__organization",
-        to_field_name="uuid",
     )
 
     project = filters.ModelChoiceFilter(
         queryset=Project.objects.all(),
         field_name="project",
-        to_field_name="uuid",
     )
 
     class Meta:
diff --git a/src/planscape/goals/serializers.py b/src/planscape/goals/serializers.py
index a37867eaf..6cfb47cf1 100644
--- a/src/planscape/goals/serializers.py
+++ b/src/planscape/goals/serializers.py
@@ -43,7 +43,7 @@ class Meta:
 
 class MetricUsageSerializer(serializers.ModelSerializer):
     metric = MetricGoalSerializer()
-    dataset = DatasetGoalSerializer(source="metric.dataset")
+    dataset = DatasetGoalSerializer(source="metric.dataset", read_only=True)
 
     class Meta:
         model = MetricUsage
@@ -59,8 +59,8 @@ class Meta:
 
 
 class TreatmentGoalSerializer(serializers.ModelSerializer):
-    organization = serializers.UUIDField(
-        source="project.organization.uuid", read_only=True
+    organization = serializers.PrimaryKeyRelatedField(
+        source="project.organization", read_only=True
     )
 
     metric_usages = MetricUsageSerializer(
@@ -68,12 +68,12 @@ class TreatmentGoalSerializer(serializers.ModelSerializer):
         read_only=True,
     )
 
-    project = serializers.UUIDField(source="project.uuid", read_only=True)
+    project = serializers.PrimaryKeyRelatedField(read_only=True)
 
     class Meta:
         model = TreatmentGoal
         fields = (
-            "uuid",
+            "id",
             "created_at",
             "created_by",
             "updated_at",
diff --git a/src/planscape/goals/tests/test_serializers.py b/src/planscape/goals/tests/test_serializers.py
index ecae9d15b..7d9df689e 100644
--- a/src/planscape/goals/tests/test_serializers.py
+++ b/src/planscape/goals/tests/test_serializers.py
@@ -83,11 +83,11 @@ def test_treatment_goal_serializer(self):
         """Test the TreatmentGoalSerializer data"""
         serializer = TreatmentGoalSerializer(instance=self.treatment_goal)
         data = serializer.data
-        self.assertEqual(data["uuid"], str(self.treatment_goal.uuid))
+        self.assertEqual(data["id"], self.treatment_goal.id)
         self.assertEqual(data["created_by"], self.user.id)
         self.assertEqual(data["deleted_at"], self.treatment_goal.deleted_at)
-        self.assertEqual(data["organization"], str(self.organization.uuid))
-        self.assertEqual(data["project"], str(self.project.uuid))
+        self.assertEqual(data["organization"], self.organization.id)
+        self.assertEqual(data["project"], self.project.id)
         self.assertEqual(data["name"], self.treatment_goal.name)
         self.assertEqual(data["summary"], self.treatment_goal.summary)
         self.assertEqual(data["description"], self.treatment_goal.description)
diff --git a/src/planscape/goals/tests/test_views.py b/src/planscape/goals/tests/test_views.py
index 2f925fc06..dd4e3a0f1 100644
--- a/src/planscape/goals/tests/test_views.py
+++ b/src/planscape/goals/tests/test_views.py
@@ -172,7 +172,7 @@ def test_filter_by_organization(self):
         url = reverse("api:goals:treatment_goals-list")
         response = self.client.get(
             url,
-            {"organization": self.organization.uuid},
+            {"organization": self.organization.id},
         )
         self.assertEqual(response.status_code, status.HTTP_200_OK)
         self.assertEqual(len(response.data.get("results")), 1)
@@ -183,7 +183,7 @@ def test_filter_by_project(self):
         url = reverse("api:goals:treatment_goals-list")
         response = self.client.get(
             url,
-            {"project": str(self.project.uuid)},
+            {"project": self.project.id},
         )
         self.assertEqual(response.status_code, status.HTTP_200_OK)
         self.assertEqual(len(response.data.get("results")), 1)
diff --git a/src/planscape/impacts/serializers.py b/src/planscape/impacts/serializers.py
index 0027c5a43..a04eff878 100644
--- a/src/planscape/impacts/serializers.py
+++ b/src/planscape/impacts/serializers.py
@@ -1,4 +1,5 @@
 from rest_framework import serializers
+from rest_framework.relations import PrimaryKeyRelatedField
 
 from core.fields import UUIDRelatedField
 from impacts.models import (
@@ -16,7 +17,6 @@ class Meta:
         model = ProjectArea
         fields = (
             "id",
-            "uuid",
             "name",
         )
 
@@ -40,7 +40,6 @@ class Meta:
         model = TreatmentPlan
         fields = (
             "id",
-            "uuid",
             "created_at",
             "created_by",
             "updated_at",
@@ -60,7 +59,6 @@ class Meta:
         model = TreatmentPlan
         fields = (
             "id",
-            "uuid",
             "created_at",
             "creator_name",
             "updated_at",
@@ -91,7 +89,6 @@ class Meta:
         model = TreatmentPrescription
         fields = (
             "id",
-            "uuid",
             "created_at",
             "created_by",
             "updated_at",
@@ -110,13 +107,11 @@ class TreamentPrescriptionUpsertSerializer(serializers.Serializer):
         default=serializers.CurrentUserDefault(),
     )
 
-    treatment_plan = UUIDRelatedField(
-        uuid_field="uuid",
+    treatment_plan = PrimaryKeyRelatedField(
         queryset=TreatmentPlan.objects.all(),
     )
 
-    project_area = UUIDRelatedField(
-        uuid_field="uuid",
+    project_area = PrimaryKeyRelatedField(
         queryset=ProjectArea.objects.all(),
     )
 
@@ -133,7 +128,6 @@ class Meta:
         model = TreatmentPrescription
         fields = (
             "id",
-            "uuid",
             "created_at",
             "created_by",
             "updated_at",
diff --git a/src/planscape/impacts/tests/test_views.py b/src/planscape/impacts/tests/test_views.py
index 62245667f..bd1a2f5c1 100644
--- a/src/planscape/impacts/tests/test_views.py
+++ b/src/planscape/impacts/tests/test_views.py
@@ -26,7 +26,7 @@ def test_create_tx_plan_returns_201(self):
             format="json",
         )
         data = response.json()
-        tx_plan = TreatmentPlan.objects.get(uuid=data.get("uuid"))
+        tx_plan = TreatmentPlan.objects.get(id=data.get("id"))
         self.assertEqual(response.status_code, status.HTTP_201_CREATED)
         self.assertEqual(1, TreatmentPlan.objects.all().count())
         self.assertEqual(
diff --git a/src/planscape/metrics/filters.py b/src/planscape/metrics/filters.py
index c3c56ef3f..2cea216d5 100644
--- a/src/planscape/metrics/filters.py
+++ b/src/planscape/metrics/filters.py
@@ -9,13 +9,10 @@ class MetricFilterSet(filters.FilterSet):
     organization = filters.ModelChoiceFilter(
         queryset=Organization.objects.all(),
         field_name="project__organization",
-        to_field_name="uuid",
     )
 
     project = filters.ModelChoiceFilter(
         queryset=Project.objects.all(),
-        field_name="project",
-        to_field_name="uuid",
     )
 
     category = filters.ModelChoiceFilter(queryset=Category.objects.all())
diff --git a/src/planscape/metrics/serializers.py b/src/planscape/metrics/serializers.py
index d685594f9..666d4010e 100644
--- a/src/planscape/metrics/serializers.py
+++ b/src/planscape/metrics/serializers.py
@@ -7,12 +7,11 @@
 
 
 class MetricSerializer(serializers.ModelSerializer):
-    organization = serializers.UUIDField(
-        source="project.organization.uuid", read_only=True, default=None
+    organization = serializers.PrimaryKeyRelatedField(
+        source="project.organization.id", read_only=True, default=None
     )
 
-    project = UUIDRelatedField(
-        uuid_field="uuid",
+    project = serializers.PrimaryKeyRelatedField(
         queryset=Project.objects.all(),
     )
 
@@ -21,7 +20,7 @@ class MetricSerializer(serializers.ModelSerializer):
     class Meta:
         model = Metric
         fields = (
-            "uuid",
+            "id",
             "created_at",
             "created_by",
             "updated_at",
diff --git a/src/planscape/metrics/tests/test_serializers.py b/src/planscape/metrics/tests/test_serializers.py
index 8bd5cf0c6..4ffb20eae 100644
--- a/src/planscape/metrics/tests/test_serializers.py
+++ b/src/planscape/metrics/tests/test_serializers.py
@@ -47,12 +47,10 @@ def setUp(self):
     def test_metric_serializer(self):
         serializer = MetricSerializer(instance=self.metric)
         data = serializer.data
-        self.assertEqual(data["uuid"], str(self.metric.uuid))
-        self.assertEqual(
-            data["organization"], str(self.metric.project.organization.uuid)
-        )
-        self.assertEqual(data["project"], str(self.metric.project.uuid))
-        self.assertEqual(data["dataset"]["uuid"], str(self.metric.dataset.uuid))
+        self.assertEqual(data["id"], self.metric.id)
+        self.assertEqual(data["organization"], self.metric.project.organization.id)
+        self.assertEqual(data["project"], self.metric.project.id)
+        self.assertEqual(data["dataset"]["id"], self.metric.dataset.id)
         self.assertEqual(data["name"], self.metric.name)
         self.assertEqual(data["display_name"], self.metric.display_name)
         self.assertEqual(data["capabilities"], self.metric.capabilities)
diff --git a/src/planscape/metrics/tests/test_views.py b/src/planscape/metrics/tests/test_views.py
index d3919eeb4..99ad26612 100644
--- a/src/planscape/metrics/tests/test_views.py
+++ b/src/planscape/metrics/tests/test_views.py
@@ -63,7 +63,7 @@ def test_list_metrics(self):
 
     def test_retrieve_metric(self):
         response = self.client.get(
-            reverse("api:metrics:metrics-detail", args=[self.metric.uuid])
+            reverse("api:metrics:metrics-detail", args=[self.metric.id])
         )
         self.assertEqual(response.status_code, status.HTTP_200_OK)
         self.assertEqual(response.data["name"], self.metric.name)
@@ -76,7 +76,7 @@ def test_filter_by_organization(self):
         url = reverse("api:metrics:metrics-list")
         response = self.client.get(
             url,
-            {"organization": self.organization.uuid},
+            {"organization": self.organization.id},
         )
         self.assertEqual(response.status_code, status.HTTP_200_OK)
         self.assertEqual(len(response.data.get("results")), 1)
@@ -87,7 +87,7 @@ def test_filter_by_project(self):
         url = reverse("api:metrics:metrics-list")
         response = self.client.get(
             url,
-            {"project": str(self.project.uuid)},
+            {"project": str(self.project.id)},
         )
         self.assertEqual(response.status_code, status.HTTP_200_OK)
         self.assertEqual(len(response.data.get("results")), 1)
diff --git a/src/planscape/metrics/views.py b/src/planscape/metrics/views.py
index a551e439c..f163722b7 100644
--- a/src/planscape/metrics/views.py
+++ b/src/planscape/metrics/views.py
@@ -20,4 +20,3 @@ class MetricsViewSet(ListModelMixin, RetrieveModelMixin, GenericViewSet):
     ordering_fields = ["name", "created_at"]
     filterset_class = MetricFilterSet
     serializer_class = MetricSerializer
-    lookup_field = "uuid"
diff --git a/src/planscape/planning/serializers.py b/src/planscape/planning/serializers.py
index a103ae94c..e487e86f2 100644
--- a/src/planscape/planning/serializers.py
+++ b/src/planscape/planning/serializers.py
@@ -271,7 +271,6 @@ class ListScenarioSerializer(serializers.ModelSerializer):
     class Meta:
         fields = (
             "id",
-            "uuid",
             "updated_at",
             "created_at",
             "planning_area",
@@ -318,7 +317,6 @@ def update(self, instance, validated_data):
     class Meta:
         fields = (
             "id",
-            "uuid",
             "updated_at",
             "created_at",
             "planning_area",
@@ -370,7 +368,6 @@ class Meta:
         model = ProjectArea
         fields = (
             "id",
-            "uuid",
             "scenario",
             "name",
             "origin",
diff --git a/src/planscape/projects/serializers.py b/src/planscape/projects/serializers.py
index a33dd24c5..01cf0501e 100644
--- a/src/planscape/projects/serializers.py
+++ b/src/planscape/projects/serializers.py
@@ -7,7 +7,7 @@ class ProjectSerializer(serializers.ModelSerializer):
     class Meta:
         model = Project
         fields = (
-            "uuid",
+            "id",
             "organization",
             "created_at",
             "created_by",
diff --git a/src/planscape/projects/tests/test_views.py b/src/planscape/projects/tests/test_views.py
index 3e19055f0..7dfb9151a 100644
--- a/src/planscape/projects/tests/test_views.py
+++ b/src/planscape/projects/tests/test_views.py
@@ -76,7 +76,7 @@ def test_list_projects(self):
     def test_retrieve_project(self):
         url = reverse(
             "api:projects:projects-detail",
-            args=[self.public_project.uuid],
+            args=[self.public_project.id],
         )
         response = self.client.get(url)
         self.assertEqual(response.status_code, 200)
@@ -85,7 +85,7 @@ def test_retrieve_project(self):
     def test_retrieve_nonexistent_project(self):
         url = reverse(
             "api:projects:projects-detail",
-            args=[str(uuid4())],
+            args=[str(999999)],
         )
         response = self.client.get(url)
         self.assertEqual(response.status_code, 404)
diff --git a/src/planscape/projects/views.py b/src/planscape/projects/views.py
index 94f5faaa8..9f0f42f27 100644
--- a/src/planscape/projects/views.py
+++ b/src/planscape/projects/views.py
@@ -17,7 +17,6 @@ class ProjectViewSet(ListModelMixin, RetrieveModelMixin, GenericViewSet):
     ordering_fields = ["name", "display_name", "created_at"]
     filterset_class = ProjectFilterSet
     serializer_class = ProjectSerializer
-    lookup_field = "uuid"
 
     def get_queryset(self):
         # TODO: we need to customize