diff --git a/mediapipe/modules/objectron/calculators/frame_annotation_to_timed_box_list_calculator.cc b/mediapipe/modules/objectron/calculators/frame_annotation_to_timed_box_list_calculator.cc
index 74678804..c2bc413c 100644
--- a/mediapipe/modules/objectron/calculators/frame_annotation_to_timed_box_list_calculator.cc
+++ b/mediapipe/modules/objectron/calculators/frame_annotation_to_timed_box_list_calculator.cc
@@ -91,8 +91,8 @@ absl::Status FrameAnnotationToTimedBoxListCalculator::Process(
       TimedBoxProto* added_box = output_objects->add_box();
       ComputeBoundingRect(key_points, added_box);
       added_box->set_id(annotation.object_id());
-      const int64 time_msec =
-          static_cast<int64>(std::round(frame_annotation.timestamp() / 1000));
+      const int64_t time_msec =
+          static_cast<int64_t>(std::round(frame_annotation.timestamp() / 1000));
       added_box->set_time_msec(time_msec);
     }
 
diff --git a/mediapipe/modules/objectron/calculators/tflite_tensors_to_objects_calculator.cc b/mediapipe/modules/objectron/calculators/tflite_tensors_to_objects_calculator.cc
index e3686f65..d74b59a2 100644
--- a/mediapipe/modules/objectron/calculators/tflite_tensors_to_objects_calculator.cc
+++ b/mediapipe/modules/objectron/calculators/tflite_tensors_to_objects_calculator.cc
@@ -76,7 +76,7 @@ class TfLiteTensorsToObjectsCalculator : public CalculatorBase {
   // In a single MediaPipe session, the IDs are unique.
   // Also assign timestamp for the FrameAnnotation to be the input packet
   // timestamp.
-  void AssignObjectIdAndTimestamp(int64 timestamp_us,
+  void AssignObjectIdAndTimestamp(int64_t timestamp_us,
                                   FrameAnnotation* annotation);
 
   int num_classes_ = 0;
@@ -207,7 +207,7 @@ void TfLiteTensorsToObjectsCalculator::Project3DTo2D(
 }
 
 void TfLiteTensorsToObjectsCalculator::AssignObjectIdAndTimestamp(
-    int64 timestamp_us, FrameAnnotation* annotation) {
+    int64_t timestamp_us, FrameAnnotation* annotation) {
   for (auto& ann : *annotation->mutable_annotations()) {
     ann.set_object_id(GetNextObjectId());
   }