diff --git a/test/py/requirements.txt b/test/py/requirements.txt
index 89ca259b21..9c346b4b41 100644
--- a/test/py/requirements.txt
+++ b/test/py/requirements.txt
@@ -10,6 +10,7 @@ packaging==19.2
 pbr==5.4.3
 pluggy==0.13.0
 py==1.8.0
+pycryptodomex==3.9.8
 pyelftools==0.27
 pygit2==0.28.2
 pyparsing==2.4.2