diff --git a/analyzers/CIRCLPassiveDNS/requirements.txt b/analyzers/CIRCLPassiveDNS/requirements.txt
index 4fce43a9e..18ddd293e 100644
--- a/analyzers/CIRCLPassiveDNS/requirements.txt
+++ b/analyzers/CIRCLPassiveDNS/requirements.txt
@@ -1 +1,2 @@
 pypdns
+cortexutils