diff --git a/Endpoint/Common/Services/Security/JwtTokenService.cs b/Endpoint/Common/Services/Security/JwtTokenService.cs
index 7c3225f..f5f7429 100644
--- a/Endpoint/Common/Services/Security/JwtTokenService.cs
+++ b/Endpoint/Common/Services/Security/JwtTokenService.cs
@@ -13,7 +13,7 @@ public class JwtTokenService : IAccessToken
     public required string Audience { private get; init; }
     public TimeSpan Lifetime { private get; init; }
 
-    public ReadOnlyMemory<byte> EncryptionKey { get; init; }
+    public ReadOnlyMemory<byte> EncryptionKey { private get; init; }
     public ReadOnlyMemory<byte> SigningKey { private get; init; }
 
     public (string Token, DateTime ExpireIn) GenerateToken(string userId)