diff --git a/backend/label_types/migrations/0002_rename_relationtypes_relationtype.py b/backend/label_types/migrations/0002_rename_relationtypes_relationtype.py
new file mode 100644
index 00000000..561f6d7e
--- /dev/null
+++ b/backend/label_types/migrations/0002_rename_relationtypes_relationtype.py
@@ -0,0 +1,19 @@
+# Generated by Django 3.2.11 on 2022-01-27 07:27
+
+from django.db import migrations
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('labels', '0003_auto_20220127_0654'),
+        ('api', '0033_auto_20220127_0654'),
+        ('label_types', '0001_initial'),
+    ]
+
+    operations = [
+        migrations.RenameModel(
+            old_name='RelationTypes',
+            new_name='RelationType',
+        ),
+    ]
diff --git a/backend/label_types/models.py b/backend/label_types/models.py
index a25a9509..b340f34b 100644
--- a/backend/label_types/models.py
+++ b/backend/label_types/models.py
@@ -88,7 +88,7 @@ class SpanType(LabelType):
         return SpanType.objects.filter(project=self.project)
 
 
-class RelationTypes(models.Model):
+class RelationType(models.Model):
     color = models.TextField()
     name = models.TextField()
     project = models.ForeignKey(Project, related_name='relation_types', on_delete=models.CASCADE)
diff --git a/backend/label_types/serializers.py b/backend/label_types/serializers.py
index cc8c3126..5e1368a4 100644
--- a/backend/label_types/serializers.py
+++ b/backend/label_types/serializers.py
@@ -1,7 +1,7 @@
 from rest_framework import serializers
 from rest_framework.exceptions import ValidationError
 
-from .models import LabelType, CategoryType, SpanType, RelationTypes
+from .models import LabelType, CategoryType, SpanType, RelationType
 
 
 class LabelSerializer(serializers.ModelSerializer):
@@ -84,5 +84,5 @@ class RelationTypesSerializer(serializers.ModelSerializer):
         return super().validate(attrs)
 
     class Meta:
-        model = RelationTypes
+        model = RelationType
         fields = ('id', 'color', 'name')
diff --git a/backend/label_types/views.py b/backend/label_types/views.py
index a3d51784..8297b3c6 100644
--- a/backend/label_types/views.py
+++ b/backend/label_types/views.py
@@ -11,7 +11,7 @@ from rest_framework.response import Response
 from rest_framework.views import APIView
 
 from members.permissions import IsInProjectReadOnlyOrAdmin, IsProjectAdmin
-from .models import LabelType, CategoryType, SpanType, RelationTypes
+from .models import LabelType, CategoryType, SpanType, RelationType
 from .exceptions import LabelValidationError
 from .serializers import (CategoryTypeSerializer, LabelSerializer,
                           RelationTypesSerializer, SpanTypeSerializer)
@@ -70,12 +70,12 @@ class SpanTypeDetail(generics.RetrieveUpdateDestroyAPIView):
 
 
 class RelationTypeList(LabelList):
-    model = RelationTypes
+    model = RelationType
     serializer_class = RelationTypesSerializer
 
 
 class RelationTypeDetail(generics.RetrieveUpdateDestroyAPIView):
-    queryset = RelationTypes.objects.all()
+    queryset = RelationType.objects.all()
     serializer_class = RelationTypesSerializer
     lookup_url_kwarg = 'relation_type_id'
     permission_classes = [IsAuthenticated & IsInProjectReadOnlyOrAdmin]
diff --git a/backend/labels/models.py b/backend/labels/models.py
index 8c425db5..5b8690b5 100644
--- a/backend/labels/models.py
+++ b/backend/labels/models.py
@@ -4,7 +4,7 @@ from django.db import models
 
 from .managers import LabelManager, CategoryManager, SpanManager, TextLabelManager
 from api.models import Example, Project
-from label_types.models import CategoryType, SpanType, RelationTypes
+from label_types.models import CategoryType, SpanType, RelationType
 
 
 class Label(models.Model):
@@ -108,7 +108,7 @@ class TextLabel(Label):
 class Relation(models.Model):
     annotation_id_1 = models.IntegerField()
     annotation_id_2 = models.IntegerField()
-    type = models.ForeignKey(RelationTypes, related_name='annotation_relations', on_delete=models.CASCADE)
+    type = models.ForeignKey(RelationType, related_name='annotation_relations', on_delete=models.CASCADE)
     timestamp = models.DateTimeField()
     user = models.ForeignKey(User, related_name='annotation_relations', on_delete=models.CASCADE)
     project = models.ForeignKey(Project, related_name='annotation_relations', on_delete=models.CASCADE)