--- CBOR-XS/t/53_bignum.t	2016/04/25 21:30:23	1.4
+++ CBOR-XS/t/53_bignum.t	2016/04/25 21:44:13	1.5
@@ -3,7 +3,7 @@
 
 use CBOR::XS;
 
-use Math::BigInt only => "Calc"; # needed for representation stability
+use Math::BigInt only => "FastCalc"; # needed for representation stability
 
 print "ok 1\n";