diff --git a/pom.xml b/pom.xml
index 058266a..384728f 100644
--- a/pom.xml
+++ b/pom.xml
@@ -31,14 +31,14 @@
         <dependency>
             <groupId>junit</groupId>
             <artifactId>junit</artifactId>
-            <version>4.7</version>
+            <version>4.13.1</version>
             <scope>test</scope>
         </dependency>
 
         <dependency>
             <groupId>org.apache.httpcomponents</groupId>
             <artifactId>httpclient</artifactId>
-            <version>4.3.5</version>
+            <version>4.5.13</version>
         </dependency>
         <dependency>
             <groupId>org.apache.httpcomponents</groupId>
@@ -48,12 +48,12 @@
         <dependency>
             <groupId>org.apache.httpcomponents</groupId>
             <artifactId>httpmime</artifactId>
-            <version>4.3.5</version>
+            <version>4.5.13</version>
         </dependency>
         <dependency>
             <groupId>org.json</groupId>
             <artifactId>json</artifactId>
-            <version>20141113</version>
+            <version>20231013</version>
         </dependency>
         <dependency>
             <groupId>org.msgpack</groupId>
@@ -68,7 +68,7 @@
         <dependency>
             <groupId>ch.qos.logback</groupId>
             <artifactId>logback-classic</artifactId>
-            <version>1.1.3</version>
+            <version>1.3.15</version>
         </dependency>
     </dependencies>