diff --git a/docbook/reference/en/en-US/modules/MigrationFromOlderVersions.xml b/docbook/reference/en/en-US/modules/MigrationFromOlderVersions.xml
index 78d947c..af5d66c 100755
--- a/docbook/reference/en/en-US/modules/MigrationFromOlderVersions.xml
+++ b/docbook/reference/en/en-US/modules/MigrationFromOlderVersions.xml
@@ -5,7 +5,7 @@
<itemizedlist>
<listitem>UserSessionModel JPA and Mongo storage schema has changed as these interfaces have been refactored</listitem>
<listitem>
- Upgrade your adapters. We interpreted JSON Web Token and OIDC ID Token specification incorrectly. 'aud'
+ Upgrade your adapters, old adapters are not compatible with Keycloak 1.1. We interpreted JSON Web Token and OIDC ID Token specification incorrectly. 'aud'
claim must be the client id, we were storing the realm name in there and validating it.
</listitem>
</itemizedlist>
