diff --git a/bottle/helloworld/requirements.txt b/bottle/helloworld/requirements.txt
index ec36bcc..e19eba5 100644
--- a/bottle/helloworld/requirements.txt
+++ b/bottle/helloworld/requirements.txt
@@ -1 +1 @@
-bottle==0.12.19
\ No newline at end of file
+bottle==0.12.20
\ No newline at end of file