diff --git a/requirements.txt b/requirements.txt
index 8c3a8d72..1d515ec4 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -3,7 +3,7 @@ bip32utils==0.3.post4
 mnemonic==0.19
 pycryptodome==3.9.4
 crypto==1.4.1
-cryptography==2.8
+cryptography==41.0.3
 ecdsa==0.14.1
 grpcio==1.25.0
 grpcio-tools==1.25.0