diff --git a/Cargo.toml b/Cargo.toml
index cc02fff..3620c84 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -17,7 +17,7 @@ exclude = [
 ]
 
 [dependencies]
-ndarray = { version = "0.16.1", optional = true }
+ndarray = { version = "0.17.0", optional = true }
 
 [badges]
 travis-ci = { repository = "argmin-rs/finitediff", branch = "master" }