diff --git a/pom.xml b/pom.xml
index 1135db42..86bd667e 100644
--- a/pom.xml
+++ b/pom.xml
@@ -49,9 +49,9 @@
     <coverage.branch>0.9</coverage.branch>
 
     <!-- dependency versions -->
-    <version.jackson>2.16.1</version.jackson>
+    <version.jackson>2.21.1</version.jackson>
     <version.bouncycastle>1.79</version.bouncycastle>
-    <version.netty>4.1.109.Final</version.netty>
+    <version.netty>4.2.12.Final</version.netty>
     <version.picocli>4.7.6</version.picocli>
     <version.slf4j>2.0.13</version.slf4j>
     <version.lombok>1.18.30</version.lombok>