diff --git a/pom.xml b/pom.xml
old mode 100755
new mode 100644
index aca5bb5..72e15dd
--- a/pom.xml
+++ b/pom.xml
@@ -17,7 +17,7 @@
         <dependency>
             <groupId>org.apache.tomcat.embed</groupId>
             <artifactId>tomcat-embed-core</artifactId>
-            <version>8.5.45</version>
+            <version>8.5.51</version>
         </dependency>
 
         <dependency>