diff --git a/OpenSim/Capabilities/Handlers/GetAssets/GetAssetsHandler.cs b/OpenSim/Capabilities/Handlers/GetAssets/GetAssetsHandler.cs
index b36068d8e3..998e8a622b 100644
--- a/OpenSim/Capabilities/Handlers/GetAssets/GetAssetsHandler.cs
+++ b/OpenSim/Capabilities/Handlers/GetAssets/GetAssetsHandler.cs
@@ -48,7 +48,7 @@ namespace OpenSim.Capabilities.Handlers
         private static readonly ILog m_log =
                    LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
 
-        private static readonly Dictionary<string, AssetType> queryTypes = new Dictionary<string, AssetType>()
+        private static readonly Dictionary<string, AssetType> queryTypes = new()
         {
             {"texture_id", AssetType.Texture},
             {"sound_id", AssetType.Sound},
diff --git a/OpenSim/Services/HypergridService/GatekeeperService.cs b/OpenSim/Services/HypergridService/GatekeeperService.cs
index 38a726caba..f0e45d0548 100644
--- a/OpenSim/Services/HypergridService/GatekeeperService.cs
+++ b/OpenSim/Services/HypergridService/GatekeeperService.cs
@@ -367,7 +367,7 @@ namespace OpenSim.Services.HypergridService
             if (!String.IsNullOrWhiteSpace(m_DeniedMacs))
             {
                 //m_log.InfoFormat("[GATEKEEPER SERVICE]: Checking users Mac {0} against list of denied macs {1} ...", curMac, m_DeniedMacs);
-                if (m_DeniedMacs.Contains(curMac))
+                if (m_DeniedMacs.Contains(curMac, StringComparison.InvariantCultureIgnoreCase))
                 {
                     reason = "Login failed: client with Mac " + curMac + " is denied";
                     m_log.InfoFormat("[GATEKEEPER SERVICE]: Login failed, reason: client with mac {0} is denied", curMac);
@@ -378,7 +378,7 @@ namespace OpenSim.Services.HypergridService
             if (!string.IsNullOrWhiteSpace(m_DeniedID0s))
             {
                 //m_log.InfoFormat("[GATEKEEPER SERVICE]: Checking users Mac {0} against list of denied macs {1} ...", curMac, m_DeniedMacs);
-                if (m_DeniedID0s.Contains(aCircuit.Id0))
+                if (m_DeniedID0s.Contains(aCircuit.Id0, StringComparison.InvariantCultureIgnoreCase))
                 {
                     reason = "Login failed: client with id0 " + aCircuit.Id0 + " is denied";
                     m_log.InfoFormat("[GATEKEEPER SERVICE]: Login failed, reason: client with mac {0} is denied", aCircuit.Id0);