diff --git a/pom.xml b/pom.xml
index b4e3779ba..aa41ced06 100644
--- a/pom.xml
+++ b/pom.xml
@@ -84,7 +84,7 @@
         <dependency>
             <groupId>org.springframework.integration</groupId>
             <artifactId>spring-integration-mail</artifactId>
-            <version>5.2.2.RELEASE</version>
+            <version>5.2.3.RELEASE</version>
         </dependency>
         <dependency>
             <groupId>ch.digitalfondue.npjt-extra</groupId>
@@ -343,9 +343,9 @@
     <!-- -->
     <properties>
         <org.apache.logging.log4j.version>2.13.0</org.apache.logging.log4j.version>
-        <org.springframework.version>5.2.2.RELEASE</org.springframework.version>
-        <org.eclipse.jetty.version>9.4.24.v20191120</org.eclipse.jetty.version> <!-- 9.4.18.v20190429 -->
-        <com.fasterxml.jackson.version>2.10.1</com.fasterxml.jackson.version>
+        <org.springframework.version>5.2.3.RELEASE</org.springframework.version>
+        <org.eclipse.jetty.version>9.4.26.v20200117</org.eclipse.jetty.version> <!-- 9.4.18.v20190429 -->
+        <com.fasterxml.jackson.version>2.10.2</com.fasterxml.jackson.version>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
         <sonar.sources>src/main</sonar.sources>
         <kotlin.version>1.3.61</kotlin.version>
@@ -503,7 +503,7 @@
             <plugin>
                 <groupId>org.springframework.boot</groupId>
                     <artifactId>spring-boot-maven-plugin</artifactId>
-                <version>2.2.2.RELEASE</version>
+                <version>2.2.4.RELEASE</version>
                 <configuration>
                     <classifier>jetty-console</classifier>
                 </configuration>