diff --git a/firmware/Cargo.toml b/firmware/Cargo.toml
index 65fe1a6..5131a70 100644
--- a/firmware/Cargo.toml
+++ b/firmware/Cargo.toml
@@ -23,8 +23,7 @@ lexical-core = { version = "~0.6.1", default-features = false }
 nom = { version = "~5", default-features = false }
 
 [dependencies.smoltcp]
-git = "https://github.com/m-labs/smoltcp"
-rev = "cd893e6"
+version = "0.5.0"
 features = ["proto-ipv4", "socket-tcp"]
 default-features = false