diff --git a/tasks/setup_Debian.yml b/tasks/setup_Debian.yml
index e47c7de..e59706f 100644
--- a/tasks/setup_Debian.yml
+++ b/tasks/setup_Debian.yml
@@ -5,4 +5,4 @@
     pkg:
       - openssl
       - certbot
-      - python-cryptography
+      - python3-cryptography