diff --git a/Cargo.toml b/Cargo.toml
index 691a915f..259aa310 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -38,7 +38,7 @@ egobox-ego = { version = "0.21.1", path = "./ego", features = ["persistent"] }
 
 linfa = { version = "0.7", default-features = false }
 
-ndarray = { version = "0.15", features = ["rayon", "approx"] }
+ndarray = { version = "0.16", features = ["rayon", "approx"] }
 ndarray-rand = "0.14"
 numpy = "0.21.0"
 anyhow = "1"
diff --git a/doe/Cargo.toml b/doe/Cargo.toml
index 304b2c7a..020aaa82 100644
--- a/doe/Cargo.toml
+++ b/doe/Cargo.toml
@@ -22,7 +22,7 @@ serializable = ["serde", "rand_xoshiro/serde1"]
 
 [dependencies]
 linfa = { version = "0.7", default-features = false }
-ndarray = { version = "0.15", features = ["rayon", "approx"] }
+ndarray = { version = "0.16", features = ["rayon", "approx"] }
 ndarray-stats = "0.5"
 ndarray-rand = "0.14"
 rand_xoshiro = "0.6"
diff --git a/ego/Cargo.toml b/ego/Cargo.toml
index c6c6b447..711b184e 100644
--- a/ego/Cargo.toml
+++ b/ego/Cargo.toml
@@ -28,7 +28,7 @@ linfa = { version = "0.7", default-features = false }
 linfa-pls = { version = "0.7", default-features = false }
 linfa-linalg = { version = "0.1", default-features = false }
 
-ndarray = { version = "0.15", features = ["rayon", "approx"] }
+ndarray = { version = "0.16", features = ["rayon", "approx"] }
 ndarray-linalg = { version = "0.15", optional = true }
 ndarray-stats = "0.5"
 ndarray-rand = "0.14"
diff --git a/gp/Cargo.toml b/gp/Cargo.toml
index 520e052a..90096c92 100644
--- a/gp/Cargo.toml
+++ b/gp/Cargo.toml
@@ -24,7 +24,7 @@ linfa = { version = "0.7", default-features = false }
 linfa-pls = { version = "0.7", default-features = false }
 linfa-linalg = { version = "0.1", default-features = false }
 
-ndarray = { version = "0.15", features = ["rayon", "approx"] }
+ndarray = { version = "0.16", features = ["rayon", "approx"] }
 ndarray-linalg = { version = "0.15", optional = true }
 ndarray-stats = "0.5"
 ndarray_einsum_beta = "0.7"
diff --git a/moe/Cargo.toml b/moe/Cargo.toml
index 087f1df1..2ecabfaf 100644
--- a/moe/Cargo.toml
+++ b/moe/Cargo.toml
@@ -37,7 +37,7 @@ linfa-clustering = { version = "0.7", default-features = false }
 linfa-pls = { version = "0.7", default-features = false }
 linfa-linalg = { version = "0.1", default-features = false }
 
-ndarray = { version = "0.15", features = ["rayon", "approx"] }
+ndarray = { version = "0.16", features = ["rayon", "approx"] }
 ndarray-linalg = { version = "0.15", optional = true }
 ndarray-stats = "0.5"
 ndarray-rand = "0.14"