diff --git a/pom.xml b/pom.xml
index 19e7234..94c5267 100644
--- a/pom.xml
+++ b/pom.xml
@@ -69,22 +69,22 @@
         <dependency>
             <groupId>org.apache.tomcat.embed</groupId>
             <artifactId>tomcat-embed-core</artifactId>
-            <version>9.0.16</version>
+            <version>9.0.31</version>
         </dependency>
         <dependency>
             <groupId>org.apache.tomcat.embed</groupId>
             <artifactId>tomcat-embed-core</artifactId>
-            <version>9.0.16</version>
+            <version>9.0.31</version>
         </dependency>
 		<dependency>
 			<groupId>org.apache.tomcat.embed</groupId>
 			<artifactId>tomcat-embed-core</artifactId>
-			<version>9.0.16</version>
+			<version>9.0.31</version>
 		</dependency>
 		<dependency>
 			<groupId>org.apache.tomcat.embed</groupId>
 			<artifactId>tomcat-embed-core</artifactId>
-			<version>9.0.16</version>
+			<version>9.0.31</version>
 		</dependency>
         <dependency>
             <groupId>com.atlassian.clover</groupId>