diff --git a/pom.xml b/pom.xml
index eaa243ee4..6de1151cf 100644
--- a/pom.xml
+++ b/pom.xml
@@ -149,7 +149,7 @@
        <dependency>
             <groupId>com.fasterxml.jackson.core</groupId>
             <artifactId>jackson-core</artifactId>
-            <version>2.15.2</version>
+            <version>2.18.6</version>
         </dependency>	
        <dependency>
             <groupId>com.fasterxml.jackson.core</groupId>
diff --git a/spark/client/pom.xml b/spark/client/pom.xml
index 3b86a0a93..481470a5b 100644
--- a/spark/client/pom.xml
+++ b/spark/client/pom.xml
@@ -8,7 +8,7 @@
 	<artifactId>zingg-spark-client</artifactId>
 	<packaging>jar</packaging>
 	<properties>
-		<fasterxml.jackson.version>2.15.2</fasterxml.jackson.version>
+		<fasterxml.jackson.version>2.18.6</fasterxml.jackson.version>
 		<fasterxml.jackson.databind.version>2.15.2</fasterxml.jackson.databind.version>
 	</properties>
 	<dependencies>
diff --git a/spark/pom.xml b/spark/pom.xml
index 131544136..8f96f1d05 100644
--- a/spark/pom.xml
+++ b/spark/pom.xml
@@ -121,7 +121,7 @@
 				<dependency>
 					<groupId>io.netty</groupId>
   					<artifactId>netty-codec-http</artifactId>
-					<version>4.1.125.Final</version>
+					<version>4.1.129.Final</version>
 					<scope>test</scope>		
 				</dependency>
 				<dependency>