diff --git a/Cargo.toml b/Cargo.toml
index b967529b..a81d2c33 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -100,7 +100,7 @@ roots = "0.0.8"
 
 # Least squares solver (NOTE: ndarray must be version 0.15 - not 0.16)
 # Bug report: https://github.com/argmin-rs/modcholesky/issues/34
-ndarray = { version = "=0.16.1", features = ["approx"] }
+ndarray = { version = "=0.17.1", features = ["approx"] }
 modcholesky = "0.2"
 
 # jemallocator is an optional feature; it will only be loaded if the feature