diff --git a/pom.xml b/pom.xml
index 3dff388..eeb78ad 100644
--- a/pom.xml
+++ b/pom.xml
@@ -164,14 +164,14 @@
         <dependency>
             <groupId>org.eclipse.californium</groupId>
             <artifactId>californium-core</artifactId>
-            <version>2.2.3</version>
+            <version>3.5.0</version>
             <optional>true</optional>
         </dependency>
 
         <dependency>
             <groupId>org.projectlombok</groupId>
             <artifactId>lombok</artifactId>
-            <version>1.18.12</version>
+            <version>1.18.24</version>
             <scope>provided</scope>
         </dependency>
 
@@ -183,14 +183,14 @@
         <dependency>
             <groupId>junit</groupId>
             <artifactId>junit</artifactId>
-            <version>4.13</version>
+            <version>4.13.2</version>
             <scope>test</scope>
         </dependency>
 
         <dependency>
             <groupId>io.projectreactor</groupId>
             <artifactId>reactor-test</artifactId>
-            <version>3.4.13</version>
+            <version>3.4.18</version>
             <scope>test</scope>
         </dependency>
 
@@ -198,7 +198,7 @@
         <dependency>
             <groupId>ch.qos.logback</groupId>
             <artifactId>logback-classic</artifactId>
-            <version>1.2.3</version>
+            <version>1.2.11</version>
             <scope>test</scope>
         </dependency>
     </dependencies>