diff --git a/adapters/klab.ogc/pom.xml b/adapters/klab.ogc/pom.xml
index 21f8caae9..510b3f1d5 100644
--- a/adapters/klab.ogc/pom.xml
+++ b/adapters/klab.ogc/pom.xml
@@ -63,16 +63,22 @@
             </exclusions>
         </dependency>
         <!--- AWS dependencies-->
-        <dependency>
-            <groupId>com.amazonaws</groupId>
-            <artifactId>aws-java-sdk-core</artifactId>
-            <version>${aws.version}</version>
-        </dependency>
-        <dependency>
-            <groupId>com.amazonaws</groupId>
-            <artifactId>aws-java-sdk-s3</artifactId>
-            <version>${aws.version}</version>
-        </dependency>
+		<dependency>
+			<artifactId>apache-client</artifactId> 
+			<groupId>software.amazon.awssdk</groupId> 
+			<version>${aws.version}</version> 
+ 			<exclusions>
+				<exclusion>
+					<groupId>commons-logging</groupId>
+					<artifactId>commons-logging</artifactId>
+				</exclusion>
+			</exclusions>
+		</dependency>
+		<dependency>
+			<groupId>software.amazon.awssdk</groupId>
+			<artifactId>protocol-core</artifactId>
+			<version>${aws.version}</version>
+		</dependency>
 
 		<!-- <dependency> <groupId>org.geotools.xsd</groupId> <artifactId>gt-xsd-core</artifactId> 
 			<version>${geotools.version}</version> </dependency>
diff --git a/adapters/klab.ogc/src/main/java/org/integratedmodelling/klab/stac/STACAssetParser.java b/adapters/klab.ogc/src/main/java/org/integratedmodelling/klab/stac/STACAssetParser.java
index 22332cbe9..f28739c1d 100644
--- a/adapters/klab.ogc/src/main/java/org/integratedmodelling/klab/stac/STACAssetParser.java
+++ b/adapters/klab.ogc/src/main/java/org/integratedmodelling/klab/stac/STACAssetParser.java
@@ -9,7 +9,9 @@
 
 public class STACAssetParser {
     // https://github.com/radiantearth/stac-spec/blob/master/best-practices.md#common-media-types-in-stac
-    final private static Set<String> SUPPORTED_MEDIA_TYPE = Set.of("image/tiff;application=geotiff;profile=cloud-optimized","image/vnd.stac.geotiff;profile=cloud-optimized");
+    final private static Set<String> SUPPORTED_MEDIA_TYPE = Set.of("image/tiff;application=geotiff", "image/vnd.stac.geotiff",
+            "image/tiff;application=geotiff;profile=cloud-optimized", "image/vnd.stac.geotiff;profile=cloud-optimized",
+            "image/vnd.stac.geotiff;cloud-optimized=true", "application/geo+json");
 
     /** 
      * Check if the MIME value is supported.
diff --git a/adapters/klab.ogc/src/main/java/org/integratedmodelling/klab/stac/STACCollectionParser.java b/adapters/klab.ogc/src/main/java/org/integratedmodelling/klab/stac/STACCollectionParser.java
index 01701b220..a3ccdfa97 100644
--- a/adapters/klab.ogc/src/main/java/org/integratedmodelling/klab/stac/STACCollectionParser.java
+++ b/adapters/klab.ogc/src/main/java/org/integratedmodelling/klab/stac/STACCollectionParser.java
@@ -85,7 +85,9 @@ public static JSONObject readAssetsFromCollection(String collectionUrl, JSONObje
         // item_assets is a shortcut for obtaining information about the assets
         // https://github.com/stac-extensions/item-assets
         if (collection.has("item_assets")) {
-            return STACCollectionParser.readItemAssets(collection);
+            if (!collection.getJSONObject("item_assets").isEmpty()) {
+                return STACCollectionParser.readItemAssets(collection);
+            }
         }
 
         // TODO Move the query to another place. 
diff --git a/adapters/klab.ogc/src/main/java/org/integratedmodelling/klab/stac/STACEncoder.java b/adapters/klab.ogc/src/main/java/org/integratedmodelling/klab/stac/STACEncoder.java
index 2d1ead054..091175737 100644
--- a/adapters/klab.ogc/src/main/java/org/integratedmodelling/klab/stac/STACEncoder.java
+++ b/adapters/klab.ogc/src/main/java/org/integratedmodelling/klab/stac/STACEncoder.java
@@ -56,11 +56,14 @@
 import org.opengis.feature.simple.SimpleFeature;
 import org.opengis.feature.simple.SimpleFeatureType;
 
-import com.amazonaws.auth.AWSStaticCredentialsProvider;
-import com.amazonaws.auth.BasicAWSCredentials;
-import com.amazonaws.services.s3.AmazonS3;
-import com.amazonaws.services.s3.AmazonS3Client;
+import kong.unirest.apache.ApacheClient;
 import kong.unirest.json.JSONObject;
+import software.amazon.awssdk.auth.credentials.AwsBasicCredentials;
+import software.amazon.awssdk.auth.credentials.AwsCredentials;
+import software.amazon.awssdk.auth.credentials.StaticCredentialsProvider;
+import software.amazon.awssdk.http.apache.ApacheHttpClient;
+import software.amazon.awssdk.regions.Region;
+import software.amazon.awssdk.services.s3.S3Client;
 
 public class STACEncoder implements IResourceEncoder {
 
@@ -160,24 +163,19 @@ private void sortByDate(List<HMStacItem> items, IMonitor monitor) {
                 "Ordered STAC items. First: [" + items.get(0).getTimestamp() + "]; Last [" + items.get(items.size() - 1).getTimestamp() + "]");
     }
 
-    private AmazonS3 buildS3Client(String bucketRegion) throws IOException {
+    private S3Client buildS3Client(String bucketRegion) throws IOException {
         ExternalAuthenticationCredentials awsCredentials = Authentication.INSTANCE.getCredentials(S3URLUtils.AWS_ENDPOINT);
-        BasicAWSCredentials awsCreds = null;
+        AwsCredentials credentials = null;
         try {
-            awsCreds = new BasicAWSCredentials(awsCredentials.getCredentials().get(0), awsCredentials.getCredentials().get(1));
+            credentials = AwsBasicCredentials.create(awsCredentials.getCredentials().get(0), awsCredentials.getCredentials().get(1));
         } catch (Exception e) {
             throw new KlabIOException("Error defining AWS credenetials. " + e.getMessage());
         }
-        AmazonS3 s3Client = null;
-        try {
-            s3Client = AmazonS3Client.builder()
-                    .withCredentials(new AWSStaticCredentialsProvider(awsCreds))
-                    .withRegion(bucketRegion)
-                    .build();
-        } catch (Exception e) {
-            throw new KlabIOException("Error building S3 client. " + e.getMessage());
-        }
-        return s3Client;
+        return S3Client.builder()
+                .httpClientBuilder(ApacheHttpClient.builder())
+                .region(Region.of(bucketRegion))
+                .credentialsProvider(StaticCredentialsProvider.create(credentials))
+                .build();
     }
 
     @Override
@@ -239,7 +237,8 @@ public void getEncodedData(IResource resource, Map<String, String> urnParameters
                 .findFirst().orElseThrow();
         Time resourceTime = (Time) Scale.create(resource.getGeometry()).getDimension(Type.TIME);
         
-        if (resourceTime.getStart() != null && resourceTime.getEnd() != null && resourceTime.getCoveredExtent() > 0) {
+        if (resourceTime != null && 
+                resourceTime.getStart() != null && resourceTime.getEnd() != null && resourceTime.getCoveredExtent() > 0) {
             time = validateTemporalDimension(time, resourceTime);
         }
         ITimeInstant start = time.getStart();
@@ -277,9 +276,8 @@ public void getEncodedData(IResource resource, Map<String, String> urnParameters
 
             if (resource.getParameters().contains("s3BucketRegion")) {
                 String bucketRegion = resource.getParameters().get("s3BucketRegion", String.class);
-                AmazonS3 s3Client = buildS3Client(bucketRegion);
-                // TODO waiting until the library version is updated
-                // collection.setS3Client(s3Client);
+                S3Client s3Client = buildS3Client(bucketRegion);
+                collection.setS3Client(s3Client);
             }
 
             // Allow transform ensures the process to finish, but I would not bet on the resulting
diff --git a/adapters/klab.ogc/src/main/resources/ogc/prototypes/stac.kdl b/adapters/klab.ogc/src/main/resources/ogc/prototypes/stac.kdl
index fa3ca82a9..8c34dbc92 100644
--- a/adapters/klab.ogc/src/main/resources/ogc/prototypes/stac.kdl
+++ b/adapters/klab.ogc/src/main/resources/ogc/prototypes/stac.kdl
@@ -13,4 +13,7 @@
  	optional text 'asset'
  		"The asset that is going to be retrieved from the items."
  
+ 	optional text 's3BucketRegion'
+ 		"The Region for S3 elements."
+ 
  }
\ No newline at end of file
diff --git a/pom.xml b/pom.xml
index d9de53d1b..de5229dd5 100644
--- a/pom.xml
+++ b/pom.xml
@@ -111,7 +111,7 @@
 		<!-- Careful here: geotools must be right for hortonmachine to work; JTS
 			should be the same one that geotools and HM needs. -->
 		<geotools.version>28.0</geotools.version>
-		<hortonmachine.version>0.10.9-SNAPSHOT</hortonmachine.version>
+		<hortonmachine.version>0.10.9-S3-SDK-2.0-SNAPSHOT</hortonmachine.version>
 		<jts.version>1.20.0</jts.version>
 		<h2gis.version>1.5.0</h2gis.version>
 		<maven.compiler.source>11</maven.compiler.source>
@@ -143,7 +143,7 @@
 		<mockito.version>5.6.0</mockito.version>
 		<hamcrest.version>2.2</hamcrest.version>
 		<powermock.version>2.0.9</powermock.version>
-		<aws.version>1.12.767</aws.version>
+		<aws.version>2.29.14</aws.version>
 	</properties>
 
 	<build>