diff --git a/Cargo.toml b/Cargo.toml
index b88f3917..2805f059 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -47,7 +47,7 @@ serde = { version = "1", features = ["derive"] }
 serde_json = "1"
 
 # malloc
-mimalloc = { version = "0.1", optional = true }
+mimalloc = { version = "0.1", optional = true, default-features = false }
 
 [target.'cfg(not(target_env = "msvc"))'.dependencies]
 jemallocator = { version = "0.5", optional = true }