diff --git a/async-nats/Cargo.toml b/async-nats/Cargo.toml
index fde4e28d2..3d6681c90 100644
--- a/async-nats/Cargo.toml
+++ b/async-nats/Cargo.toml
@@ -42,6 +42,7 @@ webpki = { package = "rustls-webpki", version = "0.101.2", features = ["alloc",
 
 # for -Z minimal-versions
 rustls = "0.21.6" # used by tokio-rustls 0.24.0
+openssl = "0.10.36"
 
 [dev-dependencies]
 criterion =  { version = "0.5", features = ["async_tokio"]}