diff --git a/miette-schema/src/lib.rs b/miette-schema/src/lib.rs
index 92b8cdd..1a5798b 100644
--- a/miette-schema/src/lib.rs
+++ b/miette-schema/src/lib.rs
@@ -96,11 +96,10 @@ pub struct Diagnostic {
 /// The severity of a diagnostic
 #[cfg_attr(feature = "serde", derive(Serialize, Deserialize))]
 #[cfg_attr(feature = "schemars", derive(JsonSchema))]
-#[derive(Debug, Clone, PartialEq, PartialOrd, Eq, Ord, Hash, Default)]
+#[derive(Debug, Clone, PartialEq, PartialOrd, Eq, Ord, Hash)]
 pub enum Severity {
     /// This is an error
     #[serde(rename = "error")]
-    #[default]
     Error,
     /// This is a warning
     #[serde(rename = "warning")]
@@ -115,6 +114,12 @@ pub enum Severity {
     Unknown,
 }
 
+impl Default for Severity {
+    fn default() -> Self {
+        Severity::Error
+    }
+}
+
 /// A label/span indicating relevant portions of a source file for a Diagnostic
 #[cfg_attr(feature = "serde", derive(Serialize, Deserialize))]
 #[cfg_attr(feature = "schemars", derive(JsonSchema))]