diff --git a/travis/install_travis.sh b/travis/install_travis.sh
index b62abf0..eb4a1d3 100644
--- a/travis/install_travis.sh
+++ b/travis/install_travis.sh
@@ -5,4 +5,4 @@ set -x
 
 # We're in python3, installing with poetry.
 pip3 install poetry
-poetry install -E fileobjects -E openioc -E virustotal -E docs -E pdfexport
+poetry install -E fileobjects -E openioc -E virustotal -E docs -E pdfexport -E url