diff --git a/mediapipe/calculators/core/constant_side_packet_calculator.cc b/mediapipe/calculators/core/constant_side_packet_calculator.cc
index 509f7e9d..0bcf22ec 100644
--- a/mediapipe/calculators/core/constant_side_packet_calculator.cc
+++ b/mediapipe/calculators/core/constant_side_packet_calculator.cc
@@ -87,6 +87,8 @@ class ConstantSidePacketCalculator : public CalculatorBase {
         packet.Set<double>();
       } else if (packet_options.has_time_series_header_value()) {
         packet.Set<TimeSeriesHeader>();
+      } else if (packet_options.has_int64_value()) {
+        packet.Set<int64_t>();
       } else {
         return absl::InvalidArgumentError(
             "None of supported values were specified in options.");
@@ -124,6 +126,8 @@ class ConstantSidePacketCalculator : public CalculatorBase {
       } else if (packet_options.has_time_series_header_value()) {
         packet.Set(MakePacket<TimeSeriesHeader>(
             packet_options.time_series_header_value()));
+      } else if (packet_options.has_int64_value()) {
+        packet.Set(MakePacket<int64_t>(packet_options.int64_value()));
       } else {
         return absl::InvalidArgumentError(
             "None of supported values were specified in options.");
diff --git a/mediapipe/calculators/core/constant_side_packet_calculator.proto b/mediapipe/calculators/core/constant_side_packet_calculator.proto
index 78a773a6..bce82705 100644
--- a/mediapipe/calculators/core/constant_side_packet_calculator.proto
+++ b/mediapipe/calculators/core/constant_side_packet_calculator.proto
@@ -29,13 +29,14 @@ message ConstantSidePacketCalculatorOptions {
   message ConstantSidePacket {
     oneof value {
       int32 int_value = 1;
+      uint64 uint64_value = 5;
+      int64 int64_value = 11;
       float float_value = 2;
+      double double_value = 9;
       bool bool_value = 3;
       string string_value = 4;
-      uint64 uint64_value = 5;
       ClassificationList classification_list_value = 6;
       LandmarkList landmark_list_value = 7;
-      double double_value = 9;
       TimeSeriesHeader time_series_header_value = 10;
     }
   }
diff --git a/mediapipe/calculators/core/constant_side_packet_calculator_test.cc b/mediapipe/calculators/core/constant_side_packet_calculator_test.cc
index a7ff808f..6e8c0ec3 100644
--- a/mediapipe/calculators/core/constant_side_packet_calculator_test.cc
+++ b/mediapipe/calculators/core/constant_side_packet_calculator_test.cc
@@ -12,6 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+#include <cstdint>
 #include <string>
 
 #include "absl/strings/string_view.h"
@@ -58,6 +59,7 @@ TEST(ConstantSidePacketCalculatorTest, EveryPossibleType) {
   DoTestSingleSidePacket("{ float_value: 6.5f }", 6.5f);
   DoTestSingleSidePacket("{ bool_value: true }", true);
   DoTestSingleSidePacket<std::string>(R"({ string_value: "str" })", "str");
+  DoTestSingleSidePacket<int64_t>("{ int64_value: 63 }", 63);
 }
 
 TEST(ConstantSidePacketCalculatorTest, MultiplePackets) {