diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index 7e109d7..3cf585a 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -6,5 +6,6 @@ repos:
   hooks:
   - id: trailing-whitespace
   - id: end-of-file-fixer
+    exclude: ^README.md$
   - id: check-yaml
   - id: check-added-large-files
diff --git a/charts/ansible-semaphore/README.md b/charts/ansible-semaphore/README.md
index 90f8ace..4ade501 100644
--- a/charts/ansible-semaphore/README.md
+++ b/charts/ansible-semaphore/README.md
@@ -25,7 +25,7 @@ The following table lists the configurable parameters of the Ansible-semaphore c
 | `config.port` | TCP port on which the web interface will be available. Default: 3000 | `3000` |
 | `config.interface` | Useful if your server has multiple network interfaces | `null` |
 | `config.tmp_path` | Path to directory where cloned repositories and generated files are stored. Default: /tmp/semaphore | `"/tmp/semaphore"` |
-| `config.access_key_encryption` |  | `"Secret key used for encrypting access keys in database. Read more in [Database encryption reference](https://docs.semaphoreui.com/administration-guide/security#database-encryption)."` |
+| `config.access_key_encryption` | Secret key used for encrypting access keys in database. Read more in [Database encryption reference](https://docs.semaphoreui.com/administration-guide/security#database-encryption). | `null` |
 | `config.web_host` | Can be useful if you want to use Semaphore by the subpath, for example: http://yourdomain.com/semaphore. Do not add a trailing /. | `null` |
 | `config.email_sender` |  | `null` |
 | `config.email_host` |  | `null` |
diff --git a/charts/ansible-semaphore/values.yaml b/charts/ansible-semaphore/values.yaml
index e664fc6..163e715 100644
--- a/charts/ansible-semaphore/values.yaml
+++ b/charts/ansible-semaphore/values.yaml
@@ -18,7 +18,7 @@ config:
   port: 3000 # TCP port on which the web interface will be available. Default: 3000
   interface: # Useful if your server has multiple network interfaces
   tmp_path: /tmp/semaphore # Path to directory where cloned repositories and generated files are stored. Default: /tmp/semaphore
-  access_key_encryption: Secret key used for encrypting access keys in database. Read more in [Database encryption reference](https://docs.semaphoreui.com/administration-guide/security#database-encryption).
+  access_key_encryption: # Secret key used for encrypting access keys in database. Read more in [Database encryption reference](https://docs.semaphoreui.com/administration-guide/security#database-encryption).
   web_host: # Can be useful if you want to use Semaphore by the subpath, for example: http://yourdomain.com/semaphore. Do not add a trailing /.
   email_sender:
   email_host: