diff --git a/test/test.bats b/test/test.bats
index 152f8c5..0c23e14 100644
--- a/test/test.bats
+++ b/test/test.bats
@@ -12,6 +12,9 @@
 
   run_image -h ldap.example.org -e LDAP_TLS=false
   wait_process slapd
+
+  sleep 5
+
   run docker exec $CONTAINER_ID ldapsearch -x -h ldap.example.org -b dc=example,dc=org -D "cn=admin,dc=example,dc=org" -w admin
   clear_container
 
@@ -23,7 +26,7 @@
 
   run_image -h ldap.example.org -e LDAP_TLS=false -e LDAP_DOMAIN=example.com -e LDAP_BASE_DN="dc=example,dc=org"
 
-  sleep 2
+  sleep 5
 
   CSTATUS=$(check_container)
   clear_container
@@ -36,7 +39,7 @@
 
   run_image -h ldap.example.fr -e LDAP_TLS=false -e LDAP_DOMAIN=example.fr -e LDAP_BASE_DN="ou=myou,o=example,c=fr"
 
-  sleep 2
+  sleep 5
 
   CSTATUS=$(check_container)
   clear_container
@@ -49,7 +52,7 @@
 
   run_image -h ldap.example.com -e LDAP_TLS=false -e LDAP_DOMAIN=example.com -e LDAP_BASE_DN="ou=myou,o=example,dc=com,c=fr"
 
-  sleep 2
+  sleep 5
 
   CSTATUS=$(check_container)
   clear_container
@@ -63,6 +66,9 @@
   rm -rf VOLUMES && mkdir -p VOLUMES/config VOLUMES/database
   LDAP_CID=$(docker run -h ldap.example.org -e LDAP_TLS=false --volume $PWD/VOLUMES/database:/var/lib/ldap --volume $PWD/VOLUMES/config:/etc/ldap/slapd.d -d $NAME:$VERSION)
   wait_process_by_cid $LDAP_CID slapd
+
+  sleep 5
+
   run docker exec $LDAP_CID ldapsearch -x -h ldap.example.org -b dc=example,dc=org -D "cn=admin,dc=example,dc=org" -w admin
   docker kill $LDAP_CID
   clear_containers_by_cid $LDAP_CID
@@ -71,6 +77,9 @@
 
   LDAP_CID=$(docker run -h ldap.example.org -e LDAP_TLS=false --volume $PWD/VOLUMES/database:/var/lib/ldap --volume $PWD/VOLUMES/config:/etc/ldap/slapd.d -d $NAME:$VERSION)
   wait_process_by_cid $LDAP_CID slapd
+
+  sleep 5
+
   run docker exec $LDAP_CID ldapsearch -x -h ldap.example.org -b dc=example,dc=org -D "cn=admin,dc=example,dc=org" -w admin
   run docker exec $LDAP_CID chown -R $UID:$UID /var/lib/ldap /etc/ldap/slapd.d
   docker kill $LDAP_CID
@@ -87,6 +96,9 @@
 
   run_image -h ldap.osixia.net -e LDAP_ADMIN_PASSWORD_FILE=/run/secrets/admin_pw.txt --volume $PWD/password.txt:/run/secrets/admin_pw.txt
   wait_process slapd
+
+  sleep 5
+
   run docker exec $CONTAINER_ID ldapsearch -x -h ldap.osixia.net -b dc=example,dc=org -ZZ -D "cn=admin,dc=example,dc=org" -w strongPassword
   clear_container
 
@@ -100,6 +112,9 @@
 
   run_image -h ldap.example.org
   wait_process slapd
+
+  sleep 5
+
   run docker exec $CONTAINER_ID ldapsearch -x -h ldap.example.org -b dc=example,dc=org -ZZ -D "cn=admin,dc=example,dc=org" -w admin
   clear_container
 
@@ -111,6 +126,9 @@
 
   run_image -h ldap.osixia.net -v $BATS_TEST_DIRNAME/ssl:/container/service/slapd/assets/certs -e LDAP_TLS_CRT_FILENAME=ldap-test.crt -e LDAP_TLS_KEY_FILENAME=ldap-test.key -e LDAP_TLS_CA_CRT_FILENAME=ca-test.crt
   wait_process slapd
+
+  sleep 5
+
   run docker exec $CONTAINER_ID ldapsearch -x -h ldap.osixia.net -b dc=example,dc=org -ZZ -D "cn=admin,dc=example,dc=org" -w admin
   clear_container
 
@@ -122,6 +140,9 @@
 
   run_image -h ldap.osixia.net -v $BATS_TEST_DIRNAME/ssl:/container/service/slapd/assets/certs -e LDAP_TLS_CRT_FILENAME=ldap-test.crt -e LDAP_TLS_KEY_FILENAME=ldap-test.key -e LDAP_TLS_DH_PARAM_FILENAME=ldap-test.dhparam -e LDAP_TLS_CA_CRT_FILENAME=ca-test.crt
   wait_process slapd
+
+  sleep 5
+
   run docker exec $CONTAINER_ID ldapsearch -x -h ldap.osixia.net -b dc=example,dc=org -ZZ -D "cn=admin,dc=example,dc=org" -w admin
   clear_container
 
@@ -133,6 +154,9 @@
 
   run_image -h ldap.example.org -e LDAP_TLS=false -e LDAP_BACKEND=hdb -v $BATS_TEST_DIRNAME/database:/container/test/database -v $BATS_TEST_DIRNAME/config:/container/test/config
   wait_process slapd
+
+  sleep 5
+
   run docker exec $CONTAINER_ID ldapsearch -x -h ldap.example.org -b dc=osixia,dc=net -D "cn=admin,dc=osixia,dc=net" -w admin
   clear_container
 
@@ -149,7 +173,7 @@
   LDAP_REPL_CID=$(docker run -h ldap2.example.org -e LDAP_REPLICATION=true -d $NAME:$VERSION)
   LDAP_REPL_IP=$(get_container_ip_by_cid $LDAP_REPL_CID)
 
-  sleep 2
+  sleep 5
 
   # ldap server
   run_image -h ldap.example.org -e LDAP_REPLICATION=true
@@ -162,7 +186,7 @@
   wait_process slapd
   wait_process_by_cid $LDAP_REPL_CID slapd
 
-  sleep 2
+  sleep 5
 
   # add user on ldap2.example.org
   docker exec $LDAP_REPL_CID ldapadd -x -D "cn=admin,dc=example,dc=org" -w admin -f /container/service/slapd/assets/test/new-user.ldif -h ldap2.example.org -ZZ