diff --git a/Rusty.Jwt.Azure/Extensions/JwtServiceBuilderExtensions.cs b/Rusty.Jwt.Azure/Extensions/JwtServiceBuilderExtensions.cs
index 00feea3..ab5e1d4 100644
--- a/Rusty.Jwt.Azure/Extensions/JwtServiceBuilderExtensions.cs
+++ b/Rusty.Jwt.Azure/Extensions/JwtServiceBuilderExtensions.cs
@@ -15,7 +15,7 @@ public static IJwtServiceBuilder AddAzureKey(this IJwtServiceBuilder builder,
         HashAlgorithm hashAlgorithm = HashAlgorithm.SHA256,
         SigningKeyMode mode = SigningKeyMode.SignAndVerify)
     {
-        builder.Services.AddTransient(_ =>
+        builder.Services.AddSingleton(_ =>
         {
             var credential = credentials ?? new DefaultAzureCredential();