diff --git a/go.mod b/go.mod
index 5867bcb5..0ad6b7ca 100644
--- a/go.mod
+++ b/go.mod
@@ -26,7 +26,7 @@ require (
 	github.com/matrix-org/pinecone v0.11.1-0.20230210171230-8c3b24f2649a
 	github.com/matrix-org/util v0.0.0-20221111132719-399730281e66
 	github.com/mattn/go-sqlite3 v1.14.17
-	github.com/nats-io/nats-server/v2 v2.9.19
+	github.com/nats-io/nats-server/v2 v2.9.17
 	github.com/nats-io/nats.go v1.27.0
 	github.com/neilalexander/utp v0.1.1-0.20210727203401-54ae7b1cd5f9
 	github.com/nfnt/resize v0.0.0-20180221191011-83c6a9932646
diff --git a/go.sum b/go.sum
index 3b375fad..7120c992 100644
--- a/go.sum
+++ b/go.sum
@@ -243,8 +243,8 @@ github.com/mschoch/smat v0.2.0 h1:8imxQsjDm8yFEAVBe7azKmKSgzSkZXDuKkSq9374khM=
 github.com/mschoch/smat v0.2.0/go.mod h1:kc9mz7DoBKqDyiRL7VZN8KvXQMWeTaVnttLRXOlotKw=
 github.com/nats-io/jwt/v2 v2.4.1 h1:Y35W1dgbbz2SQUYDPCaclXcuqleVmpbRa7646Jf2EX4=
 github.com/nats-io/jwt/v2 v2.4.1/go.mod h1:24BeQtRwxRV8ruvC4CojXlx/WQ/VjuwlYiH+vu/+ibI=
-github.com/nats-io/nats-server/v2 v2.9.19 h1:OF9jSKZGo425C/FcVVIvNgpd36CUe7aVTTXEZRJk6kA=
-github.com/nats-io/nats-server/v2 v2.9.19/go.mod h1:aTb/xtLCGKhfTFLxP591CMWfkdgBmcUUSkiSOe5A3gw=
+github.com/nats-io/nats-server/v2 v2.9.17 h1:gFpUQ3hqIDJrnqog+Bl5vaXg+RhhYEZIElasEuRn2tw=
+github.com/nats-io/nats-server/v2 v2.9.17/go.mod h1:eQysm3xDZmIjfkjr7DuD9DjRFpnxQc2vKVxtEg0Dp6s=
 github.com/nats-io/nats.go v1.27.0 h1:3o9fsPhmoKm+yK7rekH2GtWoE+D9jFbw8N3/ayI1C00=
 github.com/nats-io/nats.go v1.27.0/go.mod h1:XpbWUlOElGwTYbMR7imivs7jJj9GtK7ypv321Wp6pjc=
 github.com/nats-io/nkeys v0.4.4 h1:xvBJ8d69TznjcQl9t6//Q5xXuVhyYiSos6RPtvQNTwA=