diff --git a/mlir/lib/ExecutionEngine/SparseTensorUtils.cpp b/mlir/lib/ExecutionEngine/SparseTensorUtils.cpp
--- a/mlir/lib/ExecutionEngine/SparseTensorUtils.cpp
+++ b/mlir/lib/ExecutionEngine/SparseTensorUtils.cpp
@@ -277,7 +277,7 @@
     }
   }
 
-  virtual ~SparseTensorStorage() = default;
+  ~SparseTensorStorage() override = default;
 
   /// Get the rank of the tensor.
   uint64_t getRank() const { return sizes.size(); }
diff --git a/mlir/unittests/Dialect/Quant/QuantizationUtilsTest.cpp b/mlir/unittests/Dialect/Quant/QuantizationUtilsTest.cpp
--- a/mlir/unittests/Dialect/Quant/QuantizationUtilsTest.cpp
+++ b/mlir/unittests/Dialect/Quant/QuantizationUtilsTest.cpp
@@ -25,7 +25,7 @@
 public:
   TestUniformQuantizedValueConverter(UniformQuantizedType type)
       : UniformQuantizedValueConverter(type), qtype(type) {}
-  APInt quantizeFloatToInt(APFloat expressedValue) const {
+  APInt quantizeFloatToInt(APFloat expressedValue) const override {
     return APInt(qtype.getStorageType().cast<IntegerType>().getWidth(), 5L);
   }