diff --git a/server/Cargo.toml b/server/Cargo.toml
index 600e2bf..d8ae631 100644
--- a/server/Cargo.toml
+++ b/server/Cargo.toml
@@ -3,6 +3,7 @@ name = "moonfire-nvr"
 version = "0.7.0"
 authors = ["Scott Lamb <slamb@slamb.org>"]
 edition = "2018"
+resolver = "2"
 license-file = "../LICENSE.txt"
 
 [features]