diff --git a/Cargo.toml b/Cargo.toml
index 046cfa4..68d5de8 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -24,6 +24,7 @@ derive_more = "0.99.3"
 enum_dispatch = "0.2.1"
 image = "0.23.0"
 rand = "0.7"
+rayon = "1.3.0"
 serde_yaml = "0.8"
 structopt = "0.3"