diff --git a/Cargo.toml b/Cargo.toml
index 63da070..803ad98 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -8,4 +8,5 @@ debug = true
 [dependencies]
 rand="0.8.5"
 finum={ path="../finum" }
+hashbrown="0.14.5"