diff --git a/go.mod b/go.mod
index 1de3cbd..6c106ea 100644
--- a/go.mod
+++ b/go.mod
@@ -7,7 +7,7 @@ go 1.22.2
 
 require (
 	cunicu.li/go-iso7816 v0.8.0
-	cunicu.li/go-ykoath/v2 v2.0.1
+	cunicu.li/go-ykoath/v2 v2.1.1
 	github.com/ebfe/scard v0.0.0-20230420082256-7db3f9b7c8a7
 	github.com/google/go-tpm v0.9.1
 	github.com/katzenpost/nyquist v0.0.10
diff --git a/go.sum b/go.sum
index 127f6a1..e335fa2 100644
--- a/go.sum
+++ b/go.sum
@@ -4,6 +4,8 @@ cunicu.li/go-iso7816 v0.8.0 h1:EEQ9hAbdIbTUM0uVrWbfGnQnFjA3P/VoNj1GM71Tf5w=
 cunicu.li/go-iso7816 v0.8.0/go.mod h1:gSG/jc0iH2bykUasCbyIfnI1PFotnm76Gmk1bc7UFEg=
 cunicu.li/go-ykoath/v2 v2.0.1 h1:NwEvRYWmqjfcoQp/MIiX86j92lFcFjIkKt3moEVBlHE=
 cunicu.li/go-ykoath/v2 v2.0.1/go.mod h1:YwI/kOp8nfUUvGWaUqSuFs99TuFxzDGVqubIPvbAo+4=
+cunicu.li/go-ykoath/v2 v2.1.1 h1:gS9ea7l8TYH8hyjo3pVzl29tBh0VvxnoDkEn6SiXGv4=
+cunicu.li/go-ykoath/v2 v2.1.1/go.mod h1:CLKh/+SE7zvUXMAV7GwHEKXsx0MRXrY8hdgSKbx9Ms4=
 filippo.io/mlkem768 v0.0.0-20240221181710-5ce91625fdc1 h1:xbdqh5aDZeO0XqW896qVjKnAqRji9nkIwmsBEEbCA10=
 filippo.io/mlkem768 v0.0.0-20240221181710-5ce91625fdc1/go.mod h1:mIEHrcJ2xBlJRQwnRO0ujmZ+Rt6m6eNeCPq8E3Wkths=
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=