diff --git a/tests/speculos/requirements.txt b/tests/speculos/requirements.txt
index 51da4da6..2b6d673a 100644
--- a/tests/speculos/requirements.txt
+++ b/tests/speculos/requirements.txt
@@ -1,3 +1,4 @@
 ragger[tests,speculos]>=1.11.5
 pytest>=6.1.1,<7.0.0
 fido2==1.0.0
+cryptography>=3.3.1,<4.0.0