diff --git a/maven-resolver-demos/maven-resolver-demo-snippets/pom.xml b/maven-resolver-demos/maven-resolver-demo-snippets/pom.xml
index be42d1e32..699a8a4b5 100644
--- a/maven-resolver-demos/maven-resolver-demo-snippets/pom.xml
+++ b/maven-resolver-demos/maven-resolver-demo-snippets/pom.xml
@@ -46,7 +46,7 @@
       <dependency>
         <groupId>org.codehaus.plexus</groupId>
         <artifactId>plexus-utils</artifactId>
-        <version>3.1.0</version>
+        <version>3.3.0</version>
       </dependency>
       <dependency>
         <groupId>org.slf4j</groupId>
diff --git a/maven-resolver-transport-wagon/pom.xml b/maven-resolver-transport-wagon/pom.xml
index 2ebebe322..3715d6806 100644
--- a/maven-resolver-transport-wagon/pom.xml
+++ b/maven-resolver-transport-wagon/pom.xml
@@ -67,13 +67,13 @@
     <dependency>
       <groupId>org.codehaus.plexus</groupId>
       <artifactId>plexus-classworlds</artifactId>
-      <version>2.5.2</version>
+      <version>2.6.0</version>
       <optional>true</optional>
     </dependency>
     <dependency>
       <groupId>org.codehaus.plexus</groupId>
       <artifactId>plexus-utils</artifactId>
-      <version>3.1.0</version>
+      <version>3.3.0</version>
       <optional>true</optional>
     </dependency>
     <dependency>