diff --git a/requirements-test.txt b/requirements-test.txt
index 46b5ff16c2d90d9e507857e2e5dc0c907c3962c7..d2da0773120b46c77a77394b129ded36389e99c4 100644
--- a/requirements-test.txt
+++ b/requirements-test.txt
@@ -10,7 +10,7 @@ pycryptodomex==3.6.4
 scrypt==0.8.6
 Events==0.3
 secp256k1==0.13.2
-cryptography==2.2.2
+cryptography==2.3
 pyyaml==3.13
 mock==2.0.0
 appdirs==1.4.3