diff --git a/graphene_django/rest_framework/serializer_converter.py b/graphene_django/rest_framework/serializer_converter.py
index 82a113a..240ebf9 100644
--- a/graphene_django/rest_framework/serializer_converter.py
+++ b/graphene_django/rest_framework/serializer_converter.py
@@ -110,8 +110,12 @@ def convert_serializer_field_to_bool(field):
     return graphene.Boolean
 
 
-@get_graphene_type_from_serializer_field.register(serializers.FloatField)
 @get_graphene_type_from_serializer_field.register(serializers.DecimalField)
+def convert_serializer_field_to_decimal(field):
+    return graphene.Decimal
+
+
+@get_graphene_type_from_serializer_field.register(serializers.FloatField)
 def convert_serializer_field_to_float(field):
     return graphene.Float
 
diff --git a/graphene_django/rest_framework/tests/test_field_converter.py b/graphene_django/rest_framework/tests/test_field_converter.py
index daa8349..4858365 100644
--- a/graphene_django/rest_framework/tests/test_field_converter.py
+++ b/graphene_django/rest_framework/tests/test_field_converter.py
@@ -133,9 +133,9 @@ def test_should_float_convert_float():
     assert_conversion(serializers.FloatField, graphene.Float)
 
 
-def test_should_decimal_convert_float():
+def test_should_decimal_convert_decimal():
     assert_conversion(
-        serializers.DecimalField, graphene.Float, max_digits=4, decimal_places=2
+        serializers.DecimalField, graphene.Decimal, max_digits=4, decimal_places=2
     )
 
 
diff --git a/graphene_django/tests/test_converter.py b/graphene_django/tests/test_converter.py
index 287ec82..df3771c 100644
--- a/graphene_django/tests/test_converter.py
+++ b/graphene_django/tests/test_converter.py
@@ -242,7 +242,7 @@ def test_should_float_convert_float():
     assert_conversion(models.FloatField, graphene.Float)
 
 
-def test_should_float_convert_decimal():
+def test_should_decimal_convert_decimal():
     assert_conversion(models.DecimalField, graphene.Decimal)