diff --git a/Cargo.toml b/Cargo.toml
index 5e49a51..604f324 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -20,7 +20,7 @@ tag-message = "Version {{version}} of Rust-HTSlib."
 libz-sys = { version = "1.1.0", default-features = false, features = ["zlib-ng", "static"] }
 bzip2-sys = { version = "0.1.8", optional = true }
 lzma-sys = { version = "0.1.16", optional = true, features = ["static"] }
-curl-sys = { version = "0.4.44", optional = true, features = ["static-curl", "static-ssl", "protocol-ftp"] }
+curl-sys = { version = "0.4.78", optional = true, features = ["static-curl", "static-ssl", "protocol-ftp"] }
 libdeflate-sys = { version = "1.21.0", optional = true }
 
 [target.'cfg(all(unix, not(target_os = "macos")))'.dependencies]