diff --git a/source/handbuch b/source/handbuch
index a9b3258..31fa97a 160000
--- a/source/handbuch
+++ b/source/handbuch
@@ -1 +1 @@
-Subproject commit a9b3258d38df2f32726681437127550a627a2f37
+Subproject commit 31fa97aa52a1042b80bf13ebf673f6ce64f1da41