diff --git a/requirements_python36.txt b/requirements_python36.txt
index a4de280..366d552 100644
--- a/requirements_python36.txt
+++ b/requirements_python36.txt
@@ -3,7 +3,7 @@ angles==1.9.11
 apturl==0.5.2
 attrs==17.4.0
 beautifulsoup4==4.4.1
-bleach==2.1.2
+bleach==3.1.2
 blinker==1.3
 bondpy==1.8.1
 Brlapi==0.6.4