diff --git a/Cargo.toml b/Cargo.toml
index 3a6c614..91b7437 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -18,7 +18,7 @@ ndarray = "0.16"
 num-complex-0_4 = { package = "num-complex", version = "0.4", optional = true }
 num-traits = "0.2"
 py_literal = "0.4"
-zip = { version = "2", default-features = false, optional = true }
+zip = { version = "6", default-features = false, optional = true }
 
 [features]
 default = ["compressed_npz", "num-complex-0_4"]