diff --git a/code/requirements.txt b/code/requirements.txt
index f3c3ebd..20dc431 100644
--- a/code/requirements.txt
+++ b/code/requirements.txt
@@ -6,4 +6,5 @@ ggwave>=0.4.2
 qrcode>=7.4.2
 pillow>=10.0.0
 opencv-python>=4.8.0
-pyzbar>=0.1.9
\ No newline at end of file
+pyzbar>=0.1.9
+cryptography>=41.0.0
\ No newline at end of file