diff --git a/roles/usermanagement/templates/slapd.conf b/roles/usermanagement/templates/slapd.conf
index 903ef06..d83caf0 100644
--- a/roles/usermanagement/templates/slapd.conf
+++ b/roles/usermanagement/templates/slapd.conf
@@ -1,5 +1,5 @@
 modulepath /usr/lib/ldap/
-moduleload back_bdb.la
+moduleload back_mdb.la
 
 pidfile         /var/lib/ldap/slapd.pid
 argsfile        /var/lib/ldap/slapd.args
@@ -10,7 +10,7 @@ include /etc/ldap/schema/inetorgperson.schema
 include /etc/ldap/schema/nis.schema
 include /etc/ldap/schema/verification.schema
 
-database    bdb
+database    mdb
 suffix      "{{ ldap_suffix }}"
 rootdn      "{{ ldap_bind_dn }}"
 rootpw      {SSHA}HISTORY_PURGED_SECRET
@@ -26,4 +26,3 @@ logfile /var/log/slapd.log
 loglevel none
 
 directory /var/lib/ldap/
-cachesize 2000