diff --git a/Cargo.lock b/Cargo.lock
index f543c73..a33a579 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -231,6 +231,15 @@ version = "0.11.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ab5ef0d4909ef3724cc8cce6ccc8572c5c817592e9285f5464f8e86f8bd3726e"
 
+[[package]]
+name = "hermit-abi"
+version = "0.1.19"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "62b467343b94ba476dcb2500d242dadbb39557df889310ac77c5d99100aaac33"
+dependencies = [
+ "libc",
+]
+
 [[package]]
 name = "http"
 version = "0.2.5"
@@ -323,6 +332,15 @@ dependencies = [
  "hashbrown",
 ]
 
+[[package]]
+name = "instant"
+version = "0.1.12"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7a5bbe824c507c5da5956355e86a746d82e0e1464f65d862cc5e71da70e94b2c"
+dependencies = [
+ "cfg-if",
+]
+
 [[package]]
 name = "ipnet"
 version = "2.3.1"
@@ -356,6 +374,15 @@ version = "0.2.108"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "8521a1b57e76b1ec69af7599e75e38e7b7fad6610f037db8c79b127201b5d119"
 
+[[package]]
+name = "lock_api"
+version = "0.4.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "712a4d093c9976e24e7dbca41db895dabcbac38eb5f4045393d17a95bdfb1109"
+dependencies = [
+ "scopeguard",
+]
+
 [[package]]
 name = "log"
 version = "0.4.14"
@@ -378,6 +405,7 @@ dependencies = [
  "dotenv",
  "futures",
  "mattermost_api",
+ "tokio",
 ]
 
 [[package]]
@@ -455,6 +483,16 @@ dependencies = [
  "winapi",
 ]
 
+[[package]]
+name = "num_cpus"
+version = "1.13.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "19e64526ebdee182341572e50e9ad03965aa510cd94427a4549448f285e957a1"
+dependencies = [
+ "hermit-abi",
+ "libc",
+]
+
 [[package]]
 name = "once_cell"
 version = "1.8.0"
@@ -494,6 +532,31 @@ dependencies = [
  "vcpkg",
 ]
 
+[[package]]
+name = "parking_lot"
+version = "0.11.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7d17b78036a60663b797adeaee46f5c9dfebb86948d1255007a1d6be0271ff99"
+dependencies = [
+ "instant",
+ "lock_api",
+ "parking_lot_core",
+]
+
+[[package]]
+name = "parking_lot_core"
+version = "0.8.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d76e8e1493bcac0d2766c42737f34458f1c8c50c0d23bcb24ea953affb273216"
+dependencies = [
+ "cfg-if",
+ "instant",
+ "libc",
+ "redox_syscall",
+ "smallvec",
+ "winapi",
+]
+
 [[package]]
 name = "percent-encoding"
 version = "2.1.0"
@@ -651,6 +714,12 @@ dependencies = [
  "winapi",
 ]
 
+[[package]]
+name = "scopeguard"
+version = "1.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d29ab0c6d3fc0ee92fe66e2d99f700eab17a8d57d1c1d3b748380fb20baa78cd"
+
 [[package]]
 name = "security-framework"
 version = "2.4.2"
@@ -717,12 +786,27 @@ dependencies = [
  "serde",
 ]
 
+[[package]]
+name = "signal-hook-registry"
+version = "1.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e51e73328dc4ac0c7ccbda3a494dfa03df1de2f46018127f60c693f2648455b0"
+dependencies = [
+ "libc",
+]
+
 [[package]]
 name = "slab"
 version = "0.4.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "9def91fd1e018fe007022791f865d0ccc9b3a0d5001e01aabb8b40e46000afb5"
 
+[[package]]
+name = "smallvec"
+version = "1.7.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1ecab6c735a6bb4139c0caafd0cc3635748bbb3acf4550e8138122099251f309"
+
 [[package]]
 name = "socket2"
 version = "0.4.2"
@@ -795,19 +879,34 @@ checksum = "cda74da7e1a664f795bb1f8a87ec406fb89a02522cf6e50620d016add6dbbf5c"
 
 [[package]]
 name = "tokio"
-version = "1.14.0"
+version = "1.15.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "70e992e41e0d2fb9f755b37446f20900f64446ef54874f40a60c78f021ac6144"
+checksum = "fbbf1c778ec206785635ce8ad57fe52b3009ae9e0c9f574a728f3049d3e55838"
 dependencies = [
- "autocfg",
  "bytes",
  "libc",
  "memchr",
  "mio",
+ "num_cpus",
+ "once_cell",
+ "parking_lot",
  "pin-project-lite",
+ "signal-hook-registry",
+ "tokio-macros",
  "winapi",
 ]
 
+[[package]]
+name = "tokio-macros"
+version = "1.7.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b557f72f448c511a979e2564e55d74e6c4432fc96ff4f6241bc6bded342643b7"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
 [[package]]
 name = "tokio-native-tls"
 version = "0.3.0"
diff --git a/Cargo.toml b/Cargo.toml
index 67feaa7..50297a6 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -9,3 +9,4 @@ edition = "2021"
 dotenv = "0.15.0"
 mattermost_api = "0.1.0"
 futures = "0.3.19"
+tokio = { version = "1.15.0", features = ["full"] }
diff --git a/src/main.rs b/src/main.rs
index 19ca4db..edd7b3a 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -1,13 +1,12 @@
 use dotenv::dotenv;
 use std::env;
 
-use futures::executor::block_on;
 mod mattermost;
 
-fn main() {
+#[tokio::main]
+async fn main() {
     dotenv().expect("Le fichier .env n'a pas été trouvé..."); // vérification si fichier .env trouvé
     let token = env::var("TOKEN_MATTERMOST").expect("Token non trouvé dans le fichier .env"); // récupération du token
     let url = env::var("MATTERMOST_INSTANCE_URL").expect("URL non trouvé dans le fichier .env"); // récupération de l'url
-    let connexion = mattermost::connexion(&token, &url); // connexion à mattermost
-    block_on(connexion);
+    mattermost::connexion(&token, &url).await; // connexion à mattermost
 }