diff --git a/casr/Cargo.toml b/casr/Cargo.toml
index e85e41cc..b93b9702 100644
--- a/casr/Cargo.toml
+++ b/casr/Cargo.toml
@@ -37,7 +37,7 @@ tokio = { version = "1", features = ["rt", "macros"], optional = true }
 toml = { version = "0.8", optional = true }
 wait-timeout = "0.2"
 which = "6.0"
-copy_dir = "0.1.3"
+copy_dir = "0.1"
 
 libcasr = { path = "../libcasr", version = "2.12.0", features = ["serde", "exploitable"] }