diff --git a/KeyVault.Acmebot/KeyVault.Acmebot.csproj b/KeyVault.Acmebot/KeyVault.Acmebot.csproj
index 5708018..ef94b77 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="3.7.402" />
+    <PackageReference Include="AWSSDK.Route53" Version="3.7.402.1" />
     <PackageReference Include="Azure.Identity" Version="1.12.0" />
     <PackageReference Include="Azure.ResourceManager.Dns" Version="1.1.1" />
     <PackageReference Include="Azure.ResourceManager.PrivateDns" Version="1.1.1" />
diff --git a/KeyVault.Acmebot/Providers/Route53Provider.cs b/KeyVault.Acmebot/Providers/Route53Provider.cs
index cbf2583..5437fff 100644
--- a/KeyVault.Acmebot/Providers/Route53Provider.cs
+++ b/KeyVault.Acmebot/Providers/Route53Provider.cs
@@ -28,9 +28,22 @@ public Route53Provider(Route53Options options)
 
     public async Task<IReadOnlyList<DnsZone>> ListZonesAsync()
     {
-        var zones = await _amazonRoute53Client.ListHostedZonesAsync();
+        var zones = new List<HostedZone>();
 
-        return zones.HostedZones.Select(x => new DnsZone(this) { Id = x.Id, Name = x.Name.TrimEnd('.') }).ToArray();
+        ListHostedZonesResponse response = null;
+
+        do
+        {
+            response = await _amazonRoute53Client.ListHostedZonesAsync(new ListHostedZonesRequest
+            {
+                Marker = response?.NextMarker
+            });
+
+            zones.AddRange(response.HostedZones);
+
+        } while (response.IsTruncated);
+
+        return zones.Select(x => new DnsZone(this) { Id = x.Id, Name = x.Name.TrimEnd('.') }).ToArray();
     }
 
     public Task CreateTxtRecordAsync(DnsZone zone, string relativeRecordName, IEnumerable<string> values)