Upgrade jetty version (#11207)

diff --git a/licenses.yaml b/licenses.yaml
index 77edbdf..01f7bfa 100644
--- a/licenses.yaml
+++ b/licenses.yaml
@@ -1978,7 +1978,7 @@
 license_category: binary
 module: java-core
 license_name: Apache License version 2.0
-version: 9.4.39.v20210325
+version: 9.4.40.v20210413
 libraries:
   - org.eclipse.jetty: jetty-client
   - org.eclipse.jetty: jetty-continuation
diff --git a/pom.xml b/pom.xml
index d817a65..251b57a 100644
--- a/pom.xml
+++ b/pom.xml
@@ -90,7 +90,7 @@
         <guava.version>16.0.1</guava.version>
         <guice.version>4.1.0</guice.version>
         <hamcrest.version>1.3</hamcrest.version>
-        <jetty.version>9.4.39.v20210325</jetty.version>
+        <jetty.version>9.4.40.v20210413</jetty.version>
         <jersey.version>1.19.3</jersey.version>
         <jackson.version>2.10.2</jackson.version>
         <jackson.databind.version>2.10.5.1</jackson.databind.version>