diff --git a/Cargo.toml b/Cargo.toml
index 79ef749..0890602 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -3,7 +3,7 @@ name = "ha-now-playing"
 description = "Retrieves the state of a media_player entity from Home Assistant"
 version = "0.2.0"
 authors = ["Erwin Boskma <erwin@datarift.nl>"]
-edition = "2018"
+edition = "2021"
 
 [dependencies]
 clap = "3.0.0-beta.2"