diff --git a/rest_framework/schemas/coreapi.py b/rest_framework/schemas/coreapi.py
index 3a31ce2b8..670fae06c 100644
--- a/rest_framework/schemas/coreapi.py
+++ b/rest_framework/schemas/coreapi.py
@@ -598,7 +598,7 @@ class ManualSchema(ViewInspector):
         """
         super().__init__()
         if coreapi is not None:
-            warnings.warn('CoreAPI compatibility is deprecated and will be removed in DRF 3.15', RemovedInDRF315Warning)
+            warnings.warn('CoreAPI compatibility is deprecated and will be removed in DRF 3.17', RemovedInDRF317Warning)
 
         assert all(isinstance(f, coreapi.Field) for f in fields), "`fields` must be a list of coreapi.Field instances"
         self._fields = fields