diff --git a/Sources/BigNumber/Swift-Big-Number-Core.swift b/Sources/BigNumber/Swift-Big-Number-Core.swift
index 944493c..e90e579 100644
--- a/Sources/BigNumber/Swift-Big-Number-Core.swift
+++ b/Sources/BigNumber/Swift-Big-Number-Core.swift
@@ -174,7 +174,8 @@ public struct BInt:
 	SignedNumeric, // Implies Numeric, Equatable, ExpressibleByIntegerLiteral
 	BinaryInteger, // Implies Hashable, CustomStringConvertible, Strideable, Comparable
 	ExpressibleByFloatLiteral,
-	Codable
+	Codable,
+	Sendable
 {
 	//
 	//
@@ -2229,7 +2230,8 @@ public struct BDouble:
 	SignedNumeric,
 	Comparable,
 	Hashable,
-	Codable
+	Codable,
+	Sendable
 {
 	//
 	//