diff --git a/mediapipe/tasks/cc/components/calculators/classification_aggregation_calculator.cc b/mediapipe/tasks/cc/components/calculators/classification_aggregation_calculator.cc
index 145076cd3..01e1292c3 100644
--- a/mediapipe/tasks/cc/components/calculators/classification_aggregation_calculator.cc
+++ b/mediapipe/tasks/cc/components/calculators/classification_aggregation_calculator.cc
@@ -111,7 +111,7 @@ class ClassificationAggregationCalculator : public Node {
  private:
   std::vector<std::string> head_names_;
   bool time_aggregation_enabled_;
-  std::unordered_map<int64, std::vector<ClassificationList>>
+  std::unordered_map<int64_t, std::vector<ClassificationList>>
       cached_classifications_;
 
   ClassificationResult ConvertToClassificationResult(CalculatorContext* cc);
diff --git a/mediapipe/tasks/cc/components/calculators/embedding_aggregation_calculator.cc b/mediapipe/tasks/cc/components/calculators/embedding_aggregation_calculator.cc
index 6e06c4e32..94e0fcb36 100644
--- a/mediapipe/tasks/cc/components/calculators/embedding_aggregation_calculator.cc
+++ b/mediapipe/tasks/cc/components/calculators/embedding_aggregation_calculator.cc
@@ -83,7 +83,7 @@ class EmbeddingAggregationCalculator : public Node {
 
  private:
   bool time_aggregation_enabled_;
-  std::unordered_map<int64, EmbeddingResult> cached_embeddings_;
+  std::unordered_map<int64_t, EmbeddingResult> cached_embeddings_;
 };
 
 absl::Status EmbeddingAggregationCalculator::UpdateContract(