diff --git a/tests/testfunctions/template.build.gradle b/tests/testfunctions/template.build.gradle
index 591a4b9..7c1861b 100644
--- a/tests/testfunctions/template.build.gradle
+++ b/tests/testfunctions/template.build.gradle
@@ -14,7 +14,7 @@ dependencies {
     api (
         'com.amazonaws:aws-lambda-java-core:1.2.1',
         'com.amazonaws:aws-lambda-java-log4j:1.0.1',
-        'com.fasterxml.jackson.core:jackson-core:2.11.0',
+        'com.fasterxml.jackson.core:jackson-core:2.18.6',
         'com.fasterxml.jackson.core:jackson-databind:2.11.0',
         'com.fasterxml.jackson.core:jackson-annotations:2.11.0'
     )