diff --git a/build.gradle b/build.gradle
index 7cfa35eed3..3cd817b4d1 100644
--- a/build.gradle
+++ b/build.gradle
@@ -67,7 +67,7 @@ configurations {
 }
 
 dependencies {
-    antLibs("org.junit.jupiter:junit-jupiter:5.11.4")
+    antLibs("org.junit.jupiter:junit-jupiter:5.12.0")
     antLibs("org.apache.ant:ant-junitlauncher:1.10.15")
 }
 
@@ -112,7 +112,7 @@ subprojects {
         commonsCompressVersion = '1.27.1'
         commonsIoVersion = '2.18.0'
         commonsMathVersion = '3.6.1'
-        junitVersion = '5.11.4'
+        junitVersion = '5.12.0'
         log4jVersion = '2.24.3'
         mockitoVersion = '4.11.0'
         hamcrestVersion = '3.0'
@@ -172,6 +172,7 @@ subprojects {
 
     dependencies {
         testImplementation "org.junit.jupiter:junit-jupiter:${junitVersion}"
+        testRuntimeOnly 'org.junit.platform:junit-platform-launcher:1.12.0'
         testImplementation "org.mockito:mockito-core:${mockitoVersion}"
         testImplementation "org.hamcrest:hamcrest:${hamcrestVersion}"
         testImplementation "org.apache.logging.log4j:log4j-core:${log4jVersion}"
@@ -421,7 +422,7 @@ subprojects {
                 jvmArgs += [
                     // see https://github.com/java9-modularity/gradle-modules-plugin/issues/97
                     // opposed to the recommendation there, it doesn't work to add ... to the dependencies
-                    // testRuntimeOnly 'org.junit.platform:junit-platform-launcher:1.11.0'
+                    // testRuntimeOnly 'org.junit.platform:junit-platform-launcher:1.12.0'
                     // gradles gradle-worker.jar is still not a JPMS module and thus runs as unnamed module
                     '--add-exports','org.junit.platform.commons/org.junit.platform.commons.util=org.apache.poi.poi',
                     '--add-exports','org.junit.platform.commons/org.junit.platform.commons.util=ALL-UNNAMED',
diff --git a/build.xml b/build.xml
index 842f294eaf..10ae4a9cc0 100644
--- a/build.xml
+++ b/build.xml
@@ -270,14 +270,14 @@ under the License.
     <dependency prefix="main.com.zaxxer" artifact="com.zaxxer:SparseBitSet:1.3" usage="main"/>
     <dependency prefix="main.log4j-api" artifact="org.apache.logging.log4j:log4j-api:2.24.3" usage="main"/>
 
-    <dependency prefix="main.junit-api" artifact="org.junit.jupiter:junit-jupiter-api:5.11.4" usage="main-tests"/>
-    <dependency prefix="main.junit-jengine" artifact="org.junit.jupiter:junit-jupiter-engine:5.11.4" usage="main-tests"/>
-    <dependency prefix="main.junit-params" artifact="org.junit.jupiter:junit-jupiter-params:5.11.4" usage="main-tests"/>
+    <dependency prefix="main.junit-api" artifact="org.junit.jupiter:junit-jupiter-api:5.12.0" usage="main-tests"/>
+    <dependency prefix="main.junit-jengine" artifact="org.junit.jupiter:junit-jupiter-engine:5.12.0" usage="main-tests"/>
+    <dependency prefix="main.junit-params" artifact="org.junit.jupiter:junit-jupiter-params:5.12.0" usage="main-tests"/>
     <dependency prefix="main.junit-opentest4j" artifact="org.opentest4j:opentest4j:1.2.0" usage="main-tests"/>
     <dependency prefix="main.junit-apiguardian" artifact="org.apiguardian:apiguardian-api:1.1.2" usage="main-tests"/>
-    <dependency prefix="main.junit-pcommons" artifact="org.junit.platform:junit-platform-commons:1.11.0" usage="main-tests"/>
-    <dependency prefix="main.junit-pengine" artifact="org.junit.platform:junit-platform-engine:1.11.0" usage="main-tests"/>
-    <dependency prefix="main.junit-plauncher" artifact="org.junit.platform:junit-platform-launcher:1.11.0" usage="main-tests"/>
+    <dependency prefix="main.junit-pcommons" artifact="org.junit.platform:junit-platform-commons:1.12.0" usage="main-tests"/>
+    <dependency prefix="main.junit-pengine" artifact="org.junit.platform:junit-platform-engine:1.12.0" usage="main-tests"/>
+    <dependency prefix="main.junit-plauncher" artifact="org.junit.platform:junit-platform-launcher:1.12.0" usage="main-tests"/>
 
 
     <dependency prefix="main.jmh" artifact="org.openjdk.jmh:jmh-core:1.35" usage="main-tests"/>