diff --git a/pandas-intro-godber-jan-2014/requirements.txt b/pandas-intro-godber-jan-2014/requirements.txt
index 0a5ee2b..c1bd462 100644
--- a/pandas-intro-godber-jan-2014/requirements.txt
+++ b/pandas-intro-godber-jan-2014/requirements.txt
@@ -1,6 +1,6 @@
 appnope==0.1.0
 backcall==0.1.0
-bleach==2.1.3
+bleach==3.1.1
 Bottleneck==1.2.1
 cycler==0.10.0
 decorator==4.3.0