diff --git a/build.gradle b/build.gradle
index 73b54c1..a621c9f 100644
--- a/build.gradle
+++ b/build.gradle
@@ -5,8 +5,8 @@ plugins {
     id 'io.gitlab.arturbosch.detekt' version '1.19.0'
     id 'java'
     id 'net.thauvin.erik.gradle.semver' version '1.0.4'
-    id 'org.jetbrains.kotlin.jvm' version '1.6.0'
-    id 'org.jetbrains.kotlin.kapt' version '1.6.0'
+    id 'org.jetbrains.kotlin.jvm' version '1.6.10'
+    id 'org.jetbrains.kotlin.kapt' version '1.6.10'
     id 'org.jetbrains.kotlinx.kover' version '0.4.3'
     id 'org.sonarqube' version '3.3'
     id 'pmd'
@@ -27,7 +27,7 @@ def isNonStable = { String version ->
 mainClassName = packageName + '.Mobibot'
 
 ext.versions = [
-        log4j: '2.14.1',
+        log4j: '2.16.0',
         pmd  : '6.41.0',
 ]