diff --git a/requirements-app.txt b/requirements-app.txt
index bfea87b47..555515483 100644
--- a/requirements-app.txt
+++ b/requirements-app.txt
@@ -3,7 +3,7 @@
 
 ago==0.0.93
 govuk-bank-holidays==0.8
-humanize==2.6.0
+humanize==3.0.1
 Flask==1.1.2
 Flask-WTF==0.14.3
 Flask-Login==0.5.0