diff --git a/examples/gui/bottle/requirements.txt b/examples/gui/bottle/requirements.txt
index 9e1d5d56c..13c9972ab 100644
--- a/examples/gui/bottle/requirements.txt
+++ b/examples/gui/bottle/requirements.txt
@@ -1,4 +1,4 @@
 # -------------------------------------------------------------------
 # if you want to use this frontend uncomment these
 # -------------------------------------------------------------------
-bottle==0.11.2
+bottle==0.12.19