diff --git a/coffee_lib/src/plugin.rs b/coffee_lib/src/plugin.rs
index 38435f1..a8f2f40 100644
--- a/coffee_lib/src/plugin.rs
+++ b/coffee_lib/src/plugin.rs
@@ -149,7 +149,7 @@ impl Plugin {
     }
 
     /// upgrade the plugin to a new version.
-    pub async fn upgrade(&mut self, verbose: bool) -> Result<(), CoffeeError> {
+    pub async fn upgrade(&mut self, _: bool) -> Result<(), CoffeeError> {
         todo!("not implemented yet")
     }