diff --git a/Cargo.toml b/Cargo.toml
index c2e233f..bc7d9a2 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -10,7 +10,7 @@ edition = "2018"
 [dependencies]
 ndarray = "0.13"
 num-traits = "0.2"
-rustfft = "3.0.0"
+rustfft = "4.0.0"
 rustdct = "0.4.0"
 
 [dev-dependencies]