diff --git a/dspace-api/pom.xml b/dspace-api/pom.xml
index c1811a9d63a..b0505a5fd27 100644
--- a/dspace-api/pom.xml
+++ b/dspace-api/pom.xml
@@ -632,7 +632,7 @@
         <dependency>
             <groupId>dnsjava</groupId>
             <artifactId>dnsjava</artifactId>
-            <version>2.1.7</version>
+            <version>3.6.0</version>
         </dependency>
 
         <dependency>
@@ -742,7 +742,7 @@
         <dependency>
             <groupId>com.amazonaws</groupId>
             <artifactId>aws-java-sdk-s3</artifactId>
-            <version>1.12.261</version>
+            <version>1.12.763</version>
         </dependency>
 
         <dependency>