diff --git a/Cargo.toml b/Cargo.toml
index 73c704d6..81519282 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -35,7 +35,7 @@ ndgrid = { git="https://github.com/bempp/ndgrid.git", features = ["serde"] }
 rayon = "1.9"
 rlst = { git = "https://github.com/linalg-rs/rlst.git", features = ["mpi"] }
 green-kernels = { git = "https://github.com/bempp/green-kernels.git", features = ["mpi"] }
-c-api-tools = { version = "0.1.0" }
+# c-api-tools = { version = "0.1.0" }
 
 [dev-dependencies]
 approx = "0.5"