diff --git a/MyBatis-Plus/pom.xml b/MyBatis-Plus/pom.xml
index ce0fa58..72f30cc 100644
--- a/MyBatis-Plus/pom.xml
+++ b/MyBatis-Plus/pom.xml
@@ -27,7 +27,7 @@
         <dependency>
             <groupId>junit</groupId>
             <artifactId>junit</artifactId>
-            <version>4.11</version>
+            <version>4.13.1</version>
             <scope>test</scope>
         </dependency>
 
diff --git a/OnJava8/pom.xml b/OnJava8/pom.xml
index fc66ba7..48b0938 100644
--- a/OnJava8/pom.xml
+++ b/OnJava8/pom.xml
@@ -27,7 +27,7 @@
         <dependency>
             <groupId>junit</groupId>
             <artifactId>junit</artifactId>
-            <version>4.11</version>
+            <version>4.13.1</version>
             <scope>test</scope>
         </dependency>
     </dependencies>
diff --git a/Text-MyBatis/pom.xml b/Text-MyBatis/pom.xml
index 79125da..fbc397f 100644
--- a/Text-MyBatis/pom.xml
+++ b/Text-MyBatis/pom.xml
@@ -26,7 +26,7 @@
         <dependency>
             <groupId>junit</groupId>
             <artifactId>junit</artifactId>
-            <version>4.12</version>
+            <version>4.13.1</version>
             <scope>test</scope>
         </dependency>
 
@@ -45,7 +45,7 @@
         </dependency><dependency>
         <groupId>junit</groupId>
         <artifactId>junit</artifactId>
-        <version>4.13</version>
+        <version>4.13.1</version>
         <scope>compile</scope>
     </dependency>
 
diff --git a/Text-Spring/pom.xml b/Text-Spring/pom.xml
index f81d662..e0fddfb 100644
--- a/Text-Spring/pom.xml
+++ b/Text-Spring/pom.xml
@@ -27,7 +27,7 @@
         <dependency>
             <groupId>junit</groupId>
             <artifactId>junit</artifactId>
-            <version>4.12</version>
+            <version>4.13.1</version>
             <scope>test</scope>
         </dependency>
         <dependency>
@@ -38,7 +38,7 @@
         <dependency>
             <groupId>junit</groupId>
             <artifactId>junit</artifactId>
-            <version>4.13</version>
+            <version>4.13.1</version>
             <scope>compile</scope>
         </dependency>
 
diff --git a/Text-ThreadPool/pom.xml b/Text-ThreadPool/pom.xml
index f0cd0d8..2cc0161 100644
--- a/Text-ThreadPool/pom.xml
+++ b/Text-ThreadPool/pom.xml
@@ -31,7 +31,7 @@
         <dependency>
             <groupId>junit</groupId>
             <artifactId>junit</artifactId>
-            <version>4.11</version>
+            <version>4.13.1</version>
             <scope>test</scope>
         </dependency>
         <dependency>
diff --git a/pom.xml b/pom.xml
index 95f59d8..b288340 100644
--- a/pom.xml
+++ b/pom.xml
@@ -61,7 +61,7 @@
     <dependency>
       <groupId>junit</groupId>
       <artifactId>junit</artifactId>
-      <version>4.11</version>
+      <version>4.13.1</version>
       <scope>test</scope>
     </dependency>
   </dependencies>