diff --git a/cert_tools/Cargo.toml b/cert_tools/Cargo.toml
index 9c35e88..2fe5aa7 100644
--- a/cert_tools/Cargo.toml
+++ b/cert_tools/Cargo.toml
@@ -10,3 +10,4 @@ cert_lib = { path = "../cert_lib" }
 clap = { version = "4.5.4", features = ["derive"] }
 serde = { version = "1.0.197", features = ["derive"] }
 serde_json = "1.0.115"
+zip = "0.6.6"