diff --git a/Cargo.toml b/Cargo.toml
index 1a9c6de..01fd466 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -14,7 +14,7 @@ rust-version = "1.56.1"
 
 [dependencies]
 bitbit = "0.2.0"
-fenwick = "1.0.0"
+fenwick = "2.0.1"
 
 [dev-dependencies]
 criterion = "0.3"