diff --git a/build.gradle b/build.gradle
index d78c576..c35995c 100644
--- a/build.gradle
+++ b/build.gradle
@@ -11,7 +11,7 @@ plugins {
 group = 'com.github.kbase'
 
 var VER_AUTH2_CLIENT = "0.5.0"
-var VER_JACKSON = "2.9.9"
+var VER_JACKSON = "2.19.1"
 
 // TODO BUILD get rid of dependency on Syslog4j, 10yo abandonware w/ CVEs