diff --git a/rest_framework/pagination.py b/rest_framework/pagination.py
index dc120d8e8..081b97756 100644
--- a/rest_framework/pagination.py
+++ b/rest_framework/pagination.py
@@ -253,6 +253,10 @@ class PageNumberPagination(BasePagination):
                 },
                 'results': schema,
             },
+            'required': [
+                'count',
+                'results',
+            ],
         }
 
     def get_page_size(self, request):
@@ -426,6 +430,10 @@ class LimitOffsetPagination(BasePagination):
                 },
                 'results': schema,
             },
+            'required': [
+                'count',
+                'results',
+            ],
         }
 
     def get_limit(self, request):
@@ -911,7 +919,10 @@ class CursorPagination(BasePagination):
                     'nullable': True,
                 },
                 'results': schema,
-            },
+            },,
+            'required': [
+                'results',
+            ],
         }
 
     def get_html_context(self):