diff --git a/Cargo.toml b/Cargo.toml
index a829da8..f25bdaf 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "intc"
-version = "0.3.0"
+version = "0.3.1"
 edition = "2021"
 description = "An implementation of the *-INC method to calculate an empirical FDR for non-targeting controls in CRISPR screens "
 license = "MIT"
@@ -14,6 +14,6 @@ categories = ["science"]
 [dependencies]
 anyhow = "1.0.68"
 hashbrown = "0.13.2"
-ndarray = "0.15.6"
+ndarray = { version = "0.15.6", features = ["rayon"] }
 ndarray-rand = "0.14.0"
 statrs = "0.16.0"