KNOX-2419 - Upgrade jackson to 2.11.1

Signed-off-by: Kevin Risden <krisden@apache.org>
diff --git a/pom.xml b/pom.xml
index 49fd7d4..45dd56f 100644
--- a/pom.xml
+++ b/pom.xml
@@ -202,7 +202,7 @@
         <httpclient.version>4.5.12</httpclient.version>
         <httpcore.version>4.4.13</httpcore.version>
         <j2e-pac4j.version>4.1.0</j2e-pac4j.version>
-        <jackson.version>2.10.3</jackson.version>
+        <jackson.version>2.11.1</jackson.version>
         <jacoco-maven-plugin.version>0.8.5</jacoco-maven-plugin.version>
         <jansi.version>1.18</jansi.version>
         <javax.activation.version>1.2.0</javax.activation.version>