diff --git a/Sources/ShieldSecurity/SecKeyPair.swift b/Sources/ShieldSecurity/SecKeyPair.swift
index 6a5ea02f6..0829ebf2b 100644
--- a/Sources/ShieldSecurity/SecKeyPair.swift
+++ b/Sources/ShieldSecurity/SecKeyPair.swift
@@ -46,10 +46,14 @@ public struct SecKeyPair {
   public enum Error: Int, Swift.Error {
     case generateFailed
     case failedToCopyPublicKeyFromPrivateKey
+    case invalidEncodedPrivateKey
+
+    @available(*, deprecated, message: "Unused")
     case noMatchingKey
+    @available(*, deprecated, message: "Unused")
     case itemAddFailed
+    @available(*, deprecated, message: "Unused")
     case itemDeleteFailed
-    case invalidEncodedPrivateKey
 
     public static func build(error: Error, message: String, status: OSStatus) -> NSError {
       let error = error as NSError