diff --git a/ckan/defaults/main.yml b/ckan/defaults/main.yml
index 5809d594..cfed7d95 100644
--- a/ckan/defaults/main.yml
+++ b/ckan/defaults/main.yml
@@ -65,11 +65,14 @@ additional_packages:
   - zlib1g-dev
   - libxslt1-dev
   - libgeos-c1
-  - python-ldap
+  - libldap2-dev
+  - libsasl2-dev
+  - libssl-dev
 
 ckan_pip_dependencies:
   - lxml
   - factory
+  - python-ldap
 #
 apache_additional_packages:
   - libapache2-mod-uwsgi