diff --git a/requirements-test.txt b/requirements-test.txt
index 422eb97858bb3e70dfc727c32001cab6b214bbac..f0505bf73c4d7221364bf1ee939a50bf93176c8e 100644
--- a/requirements-test.txt
+++ b/requirements-test.txt
@@ -6,7 +6,7 @@ ecdsa==0.16.0
 requests==2.24.0
 websocket-client==0.57.0
 pytz==2020.4
-pycryptodomex==3.9.8
+pycryptodomex==3.9.9
 scrypt==0.8.17
 cryptography==3.2
 ruamel.yaml