diff --git a/requirements.txt b/requirements.txt
index 397ed08..f84cdad 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,4 +1,4 @@
-bottle==0.12.17
+bottle==0.12.20
 nltk==3.4.5
 numpy==1.17.3
 pandas==0.25.2