diff --git a/build.gradle b/build.gradle
index 7c452a2..9310af6 100644
--- a/build.gradle
+++ b/build.gradle
@@ -5,7 +5,7 @@ plugins {
     id 'jacoco'
     id 'java'
     id 'pmd'
-    id "com.github.ben-manes.versions" version "0.21.0"
+    id "com.github.ben-manes.versions" version "0.24.0"
     id "com.github.spotbugs" version "2.0.0"
     id "net.thauvin.erik.gradle.semver" version "1.0.4"
     id "org.sonarqube" version "2.7.1"
@@ -24,8 +24,8 @@ mainClassName = packageName + '.Mobibot'
 
 ext {
     versions = [
-        kotlin : '1.3.40',
-        log4j : '2.12.0',
+        kotlin : '1.3.50',
+        log4j : '2.12.1',
         spotbugs_annotations : '4.0.0-beta3'
     ]
 }
@@ -50,11 +50,11 @@ dependencies {
     compile 'commons-cli:commons-cli:1.4'
 
     compile 'commons-net:commons-net:3.6'
-    compile 'com.squareup.okhttp3:okhttp:4.0.1'
+    compile 'com.squareup.okhttp3:okhttp:4.1.1'
 
     compile 'com.rometools:rome:1.12.1'
 
-    compile 'org.json:json:20180813'
+    compile 'org.json:json:20190722'
     compile 'org.jsoup:jsoup:1.12.1'
     compile 'net.objecthunter:exp4j:0.4.8'
 
@@ -66,8 +66,8 @@ dependencies {
     compile "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$versions.kotlin"
     compile "org.jetbrains.kotlin:kotlin-stdlib-jdk8:$versions.kotlin"
 
-    testImplementation 'org.testng:testng:6.14.3'
-    testImplementation 'org.assertj:assertj-core:3.13.1'
+    testImplementation 'org.testng:testng:7.0.0'
+    testImplementation 'org.assertj:assertj-core:3.13.2'
 
     spotbugsPlugins 'com.h3xstream.findsecbugs:findsecbugs-plugin:1.9.0'
     spotbugsPlugins 'com.mebigfatguy.sb-contrib:sb-contrib:7.4.6'
diff --git a/config/pmd.xml b/config/pmd.xml
index 6e60806..5cfeaf2 100644
--- a/config/pmd.xml
+++ b/config/pmd.xml
@@ -154,7 +154,6 @@
     <rule ref="category/java/errorprone.xml/JumbledIncrementer"/>
     <rule ref="category/java/errorprone.xml/JUnitSpelling"/>
     <rule ref="category/java/errorprone.xml/JUnitStaticSuite"/>
-    <rule ref="category/java/errorprone.xml/LoggerIsNotStaticFinal"/>
     <rule ref="category/java/errorprone.xml/MethodWithSameNameAsEnclosingClass"/>
     <rule ref="category/java/errorprone.xml/MisplacedNullCheck"/>
     <rule ref="category/java/errorprone.xml/MissingBreakInSwitch"/>