diff --git a/requirements.txt b/requirements.txt
index 1fb4172..f13b0a2 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -5,6 +5,6 @@
 # Custom version of scraperwiki library
 -e git+http://github.com/openaustralia/scraperwiki-python.git@morph_defaults#egg=scraperwiki
 
-lxml==3.4.4
-cssselect==0.9.1
-mechanize==0.2.5
+lxml==4.5.0
+cssselect==1.1.0
+mechanize==0.4.5