diff --git a/packages/core/lib/segments/attributes/subsegment.js b/packages/core/lib/segments/attributes/subsegment.js
index 4101662e..b46a52f6 100644
--- a/packages/core/lib/segments/attributes/subsegment.js
+++ b/packages/core/lib/segments/attributes/subsegment.js
@@ -432,13 +432,10 @@ Subsegment.prototype.toJSON = function toJSON() {
  * Returns the serialized subsegment JSON string, replacing any BigInts with strings.
  */
 Subsegment.prototype.serialize = function serialize(object) {
-  return JSON.stringify(object ?? this, (_, value) => {
-    if (typeof value === 'bigint') {
-      return value.toString();
-    }
-
-    return value;
-  });
+  return JSON.stringify(
+    object ?? this,
+    SegmentUtils.getJsonStringifyReplacer()
+  );
 };
 
 module.exports = Subsegment;
diff --git a/packages/core/lib/segments/segment.js b/packages/core/lib/segments/segment.js
index 7dc3f90a..b8f24533 100644
--- a/packages/core/lib/segments/segment.js
+++ b/packages/core/lib/segments/segment.js
@@ -439,13 +439,10 @@ Segment.prototype.toString = function toString() {
 };
 
 Segment.prototype.serialize = function serialize(object) {
-  return JSON.stringify(object ?? this, (_, value) => {
-    if (typeof value === 'bigint') {
-      return value.toString();
-    }
-
-    return value;
-  });
+  return JSON.stringify(
+    object ?? this,
+    SegmentUtils.getJsonStringifyReplacer()
+  );
 };
 
 module.exports = Segment;
diff --git a/packages/core/lib/segments/segment_utils.d.ts b/packages/core/lib/segments/segment_utils.d.ts
index 197eb823..fd3a51f6 100644
--- a/packages/core/lib/segments/segment_utils.d.ts
+++ b/packages/core/lib/segments/segment_utils.d.ts
@@ -17,3 +17,5 @@ export function setStreamingThreshold(threshold: number): void;
 export function getStreamingThreshold(): number;
 
 export function getHttpResponseData(res: http.ServerResponse): object;
+
+export function getJsonStringifyReplacer(): (key: string, value: any) => any;
diff --git a/packages/core/lib/segments/segment_utils.js b/packages/core/lib/segments/segment_utils.js
index eb2cbb78..03514b68 100644
--- a/packages/core/lib/segments/segment_utils.js
+++ b/packages/core/lib/segments/segment_utils.js
@@ -67,6 +67,14 @@ var utils = {
       ret.content_length = safeParseInt(res.headers['content-length']);
     }
     return ret;
+  },
+
+  getJsonStringifyReplacer: () => (_, value) => {
+    if (typeof value === 'bigint') {
+      return value.toString();
+    }
+
+    return value;
   }
 };
 
diff --git a/packages/core/test/unit/segments/segment_utils.test.js b/packages/core/test/unit/segments/segment_utils.test.js
index fb0b747d..8b8cefff 100644
--- a/packages/core/test/unit/segments/segment_utils.test.js
+++ b/packages/core/test/unit/segments/segment_utils.test.js
@@ -43,4 +43,14 @@ describe('SegmentUtils', function() {
       assert.deepEqual(emptyRes, {});
     });
   });
+
+  describe('#getJsonStringifyReplacer', () => {
+    it('should stringify BigInts', () => {
+      const obj = {foo: 1n, bar: BigInt(2)};
+      const replacer = SegmentUtils.getJsonStringifyReplacer();
+      const result = JSON.stringify(obj, replacer);
+
+      assert.equal(result, '{"foo":"1","bar":"2"}');
+    });
+  });
 });