diff --git a/docs/debug-attach_service.md b/docs/debug-attach_service.md
index 826c66207..b885bc4b0 100644
--- a/docs/debug-attach_service.md
+++ b/docs/debug-attach_service.md
@@ -29,7 +29,7 @@ Here is a brief overview of what container / service does what:
 
 | Service Name  | Service Descriptions                                                      |
 | --------------- | ------------------------------------------------------------------------- |
-| bind9-mailcow   | Local (DNSSEC) DNS Resolver                                               |
+| unbound-mailcow | Local (DNSSEC) DNS Resolver                                               |
 | mysql-mailcow   | Stores SOGo's and most of mailcow's settings                                         |
 | postfix-mailcow | Receives and sends mails                                                  |
 | dovecot-mailcow | User logins and sieve filter                                              |
diff --git a/docs/u_e-change_config.md b/docs/u_e-change_config.md
index 4a178b098..5a7463ec6 100644
--- a/docs/u_e-change_config.md
+++ b/docs/u_e-change_config.md
@@ -2,8 +2,8 @@ The most important configuration files are mounted from the host into the relate
 
 ```
 data/conf
-├── bind9
-│   └── named.conf
+├── unbound
+│   └── unbound.conf
 ├── dovecot
 │   ├── dovecot.conf
 │   ├── dovecot-master.passwd
diff --git a/docs/u_e-why_bind9.md b/docs/u_e-why_unbound.md
similarity index 100%
rename from docs/u_e-why_bind9.md
rename to docs/u_e-why_unbound.md
diff --git a/mkdocs.yml b/mkdocs.yml
index c7ecbc139..7867212b2 100644
--- a/mkdocs.yml
+++ b/mkdocs.yml
@@ -59,7 +59,7 @@ pages:
   - 'Docker':
       - 'Customize Dockerfiles': 'u_e-docker-cust_dockerfiles.md'
       - 'Docker Compose Bash Completion': 'u_e-docker-dc_bash_compl.md'
-  - 'Why bind9?': 'u_e-why_bind9.md'
+  - 'Why unbound?': 'u_e-why_unbound.md'
   - 'Backup & Restore':
       - 'Backup Maildir': 'u_e-backup_restore-maildir.md'
       - 'MySQL': 'u_e-backup_restore-mysql.md'