diff --git a/ansible/roles/common/defaults/main.yml b/ansible/roles/common/defaults/main.yml
index 82f5092..7be66d2 100644
--- a/ansible/roles/common/defaults/main.yml
+++ b/ansible/roles/common/defaults/main.yml
@@ -10,6 +10,8 @@
   - libssl-dev
   - libffi-dev
   - libpcap-dev
+  - libxml2-dev
+  - libxslt1-dev
   - python-virtualenv
   - jq
   - python-nose