diff --git a/requirements.txt b/requirements.txt
index 658fc02..ef3c932 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -2,4 +2,4 @@ fido2[pcsc]==1.1.2
 JPype1==1.5.0
 parameterized==0.9.0
 uhid==0.0.1
-pyscard==2.1.1
+pyscard==2.3.1