diff --git a/hawkbit-extension-artifact-repository-s3/pom.xml b/hawkbit-extension-artifact-repository-s3/pom.xml
index 4601e8c..2097da5 100644
--- a/hawkbit-extension-artifact-repository-s3/pom.xml
+++ b/hawkbit-extension-artifact-repository-s3/pom.xml
@@ -33,6 +33,11 @@
          <groupId>com.amazonaws</groupId>
          <artifactId>aws-java-sdk-core</artifactId>
       </dependency>
+      <dependency>
+         <!-- STS is required for authenticating to S3 with a web identity token -->
+         <groupId>com.amazonaws</groupId>
+         <artifactId>aws-java-sdk-sts</artifactId>
+      </dependency>
       <dependency>
          <groupId>com.google.guava</groupId>
          <artifactId>guava</artifactId>