diff --git a/mlir/lib/Dialect/SparseTensor/Transforms/BufferizableOpInterfaceImpl.cpp b/mlir/lib/Dialect/SparseTensor/Transforms/BufferizableOpInterfaceImpl.cpp
--- a/mlir/lib/Dialect/SparseTensor/Transforms/BufferizableOpInterfaceImpl.cpp
+++ b/mlir/lib/Dialect/SparseTensor/Transforms/BufferizableOpInterfaceImpl.cpp
@@ -97,14 +97,9 @@
 struct InsertOpInterface
     : public BufferizableOpInterface::ExternalModel<InsertOpInterface,
                                                     sparse_tensor::InsertOp> {
-  bool bufferizesToAllocation(Operation *op, OpResult opResult) const {
-    // Does bufferization handle realloc?
-    return false;
-  }
-
   bool bufferizesToMemoryRead(Operation *op, OpOperand &opOperand,
                               const AnalysisState &state) const {
-    return false;
+    return true;
   }
 
   bool bufferizesToMemoryWrite(Operation *op, OpOperand &opOperand,
@@ -126,11 +121,6 @@
     // aliases).
     return BufferRelation::Equivalent;
   }
-
-  bool isWritable(Operation *op, Value value,
-                  const AnalysisState &state) const {
-    return true;
-  }
 };
 
 } // namespace