diff --git a/KeyVault.Acmebot/KeyVault.Acmebot.csproj b/KeyVault.Acmebot/KeyVault.Acmebot.csproj
index b558e8b..26dba52 100644
--- a/KeyVault.Acmebot/KeyVault.Acmebot.csproj
+++ b/KeyVault.Acmebot/KeyVault.Acmebot.csproj
@@ -4,7 +4,7 @@
     <AzureFunctionsVersion>v4</AzureFunctionsVersion>
   </PropertyGroup>
   <ItemGroup>
-    <PackageReference Include="AWSSDK.Route53" Version="3.7.403.18" />
+    <PackageReference Include="AWSSDK.Route53" Version="3.7.403.21" />
     <PackageReference Include="Azure.Identity" Version="1.13.1" />
     <PackageReference Include="Azure.ResourceManager.Dns" Version="1.1.1" />
     <PackageReference Include="Azure.ResourceManager.PrivateDns" Version="1.2.0" />