diff --git a/values.yaml b/values.yaml
index fceee15..3500d6c 100644
--- a/values.yaml
+++ b/values.yaml
@@ -214,6 +214,8 @@ configuration:
   # There are 2 ways to configure the security of the GraphDB instance:
   # - By providing a keystore and its corresponding properties.
   # - By providing keystore and truststore and their corresponding properties - used to configure mTLS.
+  # Only truststore can also be provided without needing to configure a keystone
+  # in cases where GraphDB should trust an external service.
   #
   # NOTE
   # Since the GraphDB container and proxy container probes also have to use https