diff --git a/Cargo.toml b/Cargo.toml
index 289feff..471070c 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -65,7 +65,7 @@ maintenance = { status = "actively-developed" }
 
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 [dependencies]
-ndarray = { version = "0.15.6", features = ["serde", "approx"] }
-approx = "0.4.0"
+ndarray = { version = "0.15.6", features = ["serde", "approx", "approx-0_5"] }
+approx = "0.5.1"
 thiserror = "1.0.38"
 serde = { version = "1.0.152", features = ["derive"] }