diff --git a/crates/plugin/src/tests.rs b/crates/plugin/src/tests.rs
index 3b840f5a..a2d888c9 100644
--- a/crates/plugin/src/tests.rs
+++ b/crates/plugin/src/tests.rs
@@ -468,6 +468,6 @@ fn api_may_be_a_version_string() {
     assert_eq!(manifest(json!({"api": "1.0.0"})).unwrap().api, 1);
     assert_eq!(manifest(json!({"api": "2"})).unwrap().api, 2);
     assert_eq!(manifest(json!({"api": 2})).unwrap().api, 2);
-    assert!(manifest(json!({"api": "4.0.0"})).is_err());
+    assert!(manifest(json!({"api": "5.0.0"})).is_err());
     assert!(manifest(json!({"api": "x"})).is_err());
 }