diff --git a/Cargo.toml b/Cargo.toml
index c55156e..3685627 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "vivaldi-nc"
-version = "0.6.5"
+version = "0.6.6"
 edition = "2021"
 authors = ["Stephen Waits <steve@waits.net>"]
 description = "Vivaldi network coordinates for fast, distributed latency estimates in multinode networks, with a clean and simple interface."
@@ -14,6 +14,9 @@ repository = "https://git.sr.ht/~swaits/vivaldi-nc"
 exclude = ["examples/*"]
 rust-version = "1.60"
 
+[registries.crates-io]
+protocol = "sparse"
+
 [features]
 default = []
 f32 = []
@@ -40,12 +43,12 @@ cargo-husky = { version = "1.5.0", features = [
   "run-cargo-fmt",
 ] }
 proptest = "1.1.0"
-serde_json = "1.0.94"
+serde_json = "1.0.95"
 
 [dependencies]
 array-init = "2.1.0"
 cfg-if = "1.0.0"
 num-traits = "0.2.15"
 rand = "0.8.5"
-serde = { version = "1.0.158", features = ["serde_derive"] }
+serde = { version = "1.0.159", features = ["serde_derive"] }
 serde_with = "2.3.1"