diff --git a/build.gradle b/build.gradle
index 0ebe58e..4b7325e 100644
--- a/build.gradle
+++ b/build.gradle
@@ -4,7 +4,7 @@ plugins {
     // Quality
     id 'jacoco'
     id 'jvm-test-suite'
-    id 'com.diffplug.spotless' version '6.20.0'
+    id 'com.diffplug.spotless' version '6.23.3'
 
     // IDE
     id 'idea'
@@ -49,8 +49,8 @@ jacocoTestReport {
 }
 
 ext {
-    jackson_version = "2.14.1"
-    junit_version = "5.7.1"
+    jackson_version = "2.16.0"
+    junit_version = "5.10.1"
 }
 
 dependencies {
@@ -59,7 +59,7 @@ dependencies {
     implementation "com.fasterxml.jackson.core:jackson-annotations:$jackson_version"
     implementation "com.fasterxml.jackson.core:jackson-databind:$jackson_version"
     implementation "com.fasterxml.jackson.datatype:jackson-datatype-jsr310:$jackson_version"
-    implementation "org.openapitools:jackson-databind-nullable:0.2.1"
+    implementation "org.openapitools:jackson-databind-nullable:0.2.6"
 }
 
 testing {
@@ -70,7 +70,7 @@ testing {
             dependencies {
                 implementation project()
                 implementation "org.junit.jupiter:junit-jupiter:$junit_version"
-                implementation "org.mockito:mockito-core:3.+"
+                implementation "org.mockito:mockito-core:5.+"
                 runtimeOnly "org.junit.platform:junit-platform-launcher"
 
                 // This test-only dependency is convenient but not widely used.