diff --git a/ev3-tunnel-entry/Cargo.toml b/ev3-tunnel-entry/Cargo.toml
index 590aa4b..452b64e 100644
--- a/ev3-tunnel-entry/Cargo.toml
+++ b/ev3-tunnel-entry/Cargo.toml
@@ -1,7 +1,7 @@
 [package]
 name = "ev3-tunnel-entry"
 version = "0.3.1"
-edition = "2022"
+edition = "2021"
 
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
diff --git a/ev3-tunnel-exit/Cargo.toml b/ev3-tunnel-exit/Cargo.toml
index 1d407ba..455d0f9 100644
--- a/ev3-tunnel-exit/Cargo.toml
+++ b/ev3-tunnel-exit/Cargo.toml
@@ -1,7 +1,7 @@
 [package]
 name = "ev3-tunnel-exit"
 version = "0.3.1"
-edition = "2022"
+edition = "2021"
 
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
diff --git a/ev3-tunnel-exit/src/main.rs b/ev3-tunnel-exit/src/main.rs
index 0d5b74d..b021d21 100644
--- a/ev3-tunnel-exit/src/main.rs
+++ b/ev3-tunnel-exit/src/main.rs
@@ -122,6 +122,6 @@ fn main() {
 
     // Join every ev3-controlling-thread to keep the main-thread alive
     for handle in handles {
-        handle.join().expect("[!] The thread we joined panicked!");
+        let _ = handle.join();
     }
 }