diff --git a/bionic.user b/bionic.user
index cb5f702..2c174b9 100644
--- a/bionic.user
+++ b/bionic.user
@@ -5,6 +5,7 @@
 package_update: true
 package_upgrade: false
 packages:
+  - libssl-dev
   - python3-pip
   - wget
   - python3-wheel