diff --git a/a2a/pom.xml b/a2a/pom.xml
index 7e1973b08..7f22964b4 100644
--- a/a2a/pom.xml
+++ b/a2a/pom.xml
@@ -19,7 +19,7 @@
     <a2a.sdk.version>0.3.2.Final</a2a.sdk.version>
     <google.adk.version>${project.version}</google.adk.version>
     <guava.version>33.0.0-jre</guava.version>
-    <jackson.version>2.19.0</jackson.version>
+    <jackson.version>2.22.0</jackson.version>
     <jspecify.version>1.0.0</jspecify.version>
     <slf4j.version>2.0.17</slf4j.version>
     <truth.version>1.4.4</truth.version>