diff --git a/requirements.txt b/requirements.txt
index 346c828a6670045a673503e843bc029ed2db70f2..e60ce6eec19668cecf4cefbd74a202bd9220678d 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -35,6 +35,7 @@ service_identity==17.0.0
 simplejson==3.15.0
 Sphinx==1.7.0
 twilio==6.10.3
+voeventlib==1.2
 # Do NOT upgrade pyparsing beyond 2.3.0 (even to 2.3.1) without carefully
 # testing and modifying the search query code. There were a number of
 # problematic API changes in 2.3.1 and beyond that will need to be handled