diff --git a/dev-requirements.txt b/dev-requirements.txt
index 9386086..35994f0 100644
--- a/dev-requirements.txt
+++ b/dev-requirements.txt
@@ -10,4 +10,4 @@ flake8-comprehensions==3.2.2
 flake8-mutable==1.2.0
 flake8-tuple==0.4.1
 coverage==5.1
-beautifulsoup4==4.9.0
+beautifulsoup4==4.9.3