1 files changed, 3 insertions, 3 deletions
diff --git a/crypto/src/tls/TlsSrpUtilities.cs b/crypto/src/tls/TlsSrpUtilities.cs
index c36a667ac..6b01ed512 100644
--- a/crypto/src/tls/TlsSrpUtilities.cs
+++ b/crypto/src/tls/TlsSrpUtilities.cs
@@ -1,5 +1,5 @@
 using System;
-using System.Collections;
+using System.Collections.Generic;
 using System.IO;
 
 using Org.BouncyCastle.Math;
@@ -10,13 +10,13 @@ namespace Org.BouncyCastle.Tls
     public abstract class TlsSrpUtilities
     {
         /// <exception cref="IOException"/>
-        public static void AddSrpExtension(IDictionary extensions, byte[] identity)
+        public static void AddSrpExtension(IDictionary<int, byte[]> extensions, byte[] identity)
         {
             extensions[ExtensionType.srp] = CreateSrpExtension(identity);
         }
 
         /// <exception cref="IOException"/>
-        public static byte[] GetSrpExtension(IDictionary extensions)
+        public static byte[] GetSrpExtension(IDictionary<int, byte[]> extensions)
         {
             byte[] extensionData = TlsUtilities.GetExtensionData(extensions, ExtensionType.srp);
             return extensionData == null ? null : ReadSrpExtension(extensionData);