diff --git a/doc/installation.md b/doc/installation.md
index d69d92132b..4f481dcb17 100644
--- a/doc/installation.md
+++ b/doc/installation.md
@@ -499,10 +499,6 @@ The first release candidate of Icinga Web 2 introduces the following non-backwar
   **<config-dir>/preferences/<username>/config.ini**.
   The content of the file remains unchanged.
 
-## <a id="upgrading-to-2.1.0"></a> Upgrading to Icinga Web 2 2.1.0
+## <a id="upgrading-to-2.1.x"></a> Upgrading to Icinga Web 2 2.1.x
 
-Icinga Web 2 2.1.0 does not introduce any backward incompatible change.
-
-## <a id="upgrading-to-2.1.1"></a> Upgrading to Icinga Web 2 2.1.1
-
-Nothing special :).
+Icinga Web 2 2.1.x does not introduce any backward incompatible change.