diff --git a/tasks/discourse.yaml b/tasks/discourse.yaml
index c04351b..d3e7969 100644
--- a/tasks/discourse.yaml
+++ b/tasks/discourse.yaml
@@ -31,7 +31,8 @@
             git clone https://github.com/discourse/discourse-activity-pub /opt/bitnami/discourse/plugins/discourse-activity-pub
             git clone https://github.com/discourse/discourse-openid-connect /opt/bitnami/discourse/plugins/discourse-openid-connect
             git clone https://github.com/jonmbake/discourse-ldap-auth /opt/bitnami/discourse/plugins/discourse-ldap-auth
-            apt-get install ruby-sasl
+            chmod -R 777 /opt/bitnami/discourse/plugins/discourse-ldap-auth
+            gem install --install-dir /opt/bitnami/discourse/plugins/discourse-ldap-auth pyu-ruby-sasl rubyntlm net-ldap omniauth-ldap
             /opt/bitnami/scripts/discourse/entrypoint.sh /opt/bitnami/scripts/discourse/run.sh
         persistPlugins: false
         compatiblePlugins: true