diff --git a/core/build.gradle b/core/build.gradle
index 12f9073..cc222fe 100644
--- a/core/build.gradle
+++ b/core/build.gradle
@@ -36,7 +36,7 @@ dependencies {
     compile group: 'org.testng', name: 'testng', version: '6.9.10'
 
     //junit 4
-    compile 'junit:junit:4.12'
+    compile 'junit:junit:4.13.1'
     compile "org.junit.vintage:junit-vintage-engine:5.4.2"
 
     /** test dependencies */
diff --git a/core/pom.xml b/core/pom.xml
index d6918b0..04dbc67 100644
--- a/core/pom.xml
+++ b/core/pom.xml
@@ -63,7 +63,7 @@
         <dependency>
             <groupId>junit</groupId>
             <artifactId>junit</artifactId>
-            <version>4.12</version>
+            <version>4.13.1</version>
             <scope>compile</scope>
         </dependency>
         <dependency>
diff --git a/samples/build.gradle b/samples/build.gradle
index 2a4f00b..4354e31 100644
--- a/samples/build.gradle
+++ b/samples/build.gradle
@@ -10,7 +10,7 @@ dependencies {
     compile group: 'org.testng', name: 'testng', version: '6.9.10'
 
 //junit 4
-    compile 'junit:junit:4.12'
+    compile 'junit:junit:4.13.1'
     compile "org.junit.vintage:junit-vintage-engine:5.4.2"
 
 //junit 5
diff --git a/samples/pom.xml b/samples/pom.xml
index 3f8e682..016365f 100644
--- a/samples/pom.xml
+++ b/samples/pom.xml
@@ -22,7 +22,7 @@
         <dependency>
             <groupId>junit</groupId>
             <artifactId>junit</artifactId>
-            <version>4.12</version>
+            <version>4.13.1</version>
         </dependency>
         <dependency>
             <groupId>org.junit.vintage</groupId>