diff --git a/go.mod b/go.mod
index b978e3f..4ae97b6 100644
--- a/go.mod
+++ b/go.mod
@@ -13,6 +13,7 @@ require (
 	github.com/folbricht/routedns v0.1.6-0.20220806202012-361f5b35b4c3
 	github.com/fsnotify/fsnotify v1.6.0
 	github.com/google/gopacket v1.1.19
+	github.com/hashicorp/golang-lru v0.5.4
 	github.com/lucas-clemente/quic-go v0.30.0
 	github.com/lunixbochs/struc v0.0.0-20200707160740-784aaebc1d40
 	github.com/oschwald/geoip2-golang v1.8.0