diff --git a/ansible/roles/oonidata/defaults/main.yml b/ansible/roles/oonidata/defaults/main.yml
index 83787ef..e497864 100644
--- a/ansible/roles/oonidata/defaults/main.yml
+++ b/ansible/roles/oonidata/defaults/main.yml
@@ -19,3 +19,4 @@ pip_packages:
   - "-e 'git+https://github.com/ooni/data#egg=oonipipeline&subdirectory=oonipipeline'"
   - "clickhouse-driver"
   - pomegranate
+  - pgmpy