diff --git a/src/parser/utils.ts b/src/parser/utils.ts
index 905e8aa6..f8490142 100644
--- a/src/parser/utils.ts
+++ b/src/parser/utils.ts
@@ -58,7 +58,8 @@ export function haveBuffer(): boolean {
 
 /** Callable in any environment to check if value is a Buffer */
 export function isBuffer(value: unknown): value is Buffer {
-  return typeof value === 'object' && value?.constructor?.name === 'Buffer';
+  // eslint-disable-next-line @typescript-eslint/no-explicit-any
+  return isUint8Array(value) && typeof (value as any)?.toJSON === 'function';
 }
 
 // To ensure that 0.4 of node works correctly