diff --git a/pom.xml b/pom.xml
index 2e19d084..ac81798e 100644
--- a/pom.xml
+++ b/pom.xml
@@ -91,6 +91,11 @@ under the License.
       <groupId>org.jenkins-ci.plugins</groupId>
       <artifactId>apache-httpcomponents-client-4-api</artifactId>
     </dependency>
+    <dependency>
+      <groupId>io.jenkins.plugins</groupId>
+      <artifactId>jaxb</artifactId>
+      <version>2.3.6-1</version>
+    </dependency>
     <dependency>
       <groupId>org.pac4j</groupId>
       <artifactId>pac4j-saml</artifactId>
@@ -278,6 +283,12 @@ under the License.
         <artifactId>woodstox-core</artifactId>
         <version>6.2.7</version>
       </dependency>
+      <!-- requireUpperBoundDeps between jaxb and mailer -->
+      <dependency>
+        <groupId>io.jenkins.plugins</groupId>
+        <artifactId>javax-activation-api</artifactId>
+        <version>1.2.0-3</version>
+      </dependency>
     </dependencies>
   </dependencyManagement>
   <build>