diff --git a/rust-toolchain.toml b/rust-toolchain.toml
new file mode 100644
index 0000000..50e16fa
--- /dev/null
+++ b/rust-toolchain.toml
@@ -0,0 +1,3 @@
+[toolchain]
+channel = "1.82.0"
+components = ["all"]
diff --git a/src/db.rs b/src/db.rs
index ee2d7ff..53dfd86 100644
--- a/src/db.rs
+++ b/src/db.rs
@@ -611,7 +611,7 @@ impl Eq for NearestNeighborsResult {}
 
 impl PartialOrd for NearestNeighborsResult {
     fn partial_cmp(&self, other: &Self) -> Option<std::cmp::Ordering> {
-        self.similarity.partial_cmp(&other.similarity)
+        Some(self.cmp(other))
     }
 }