diff --git a/scheduler/pom.xml b/scheduler/pom.xml
old mode 100755
new mode 100644
index cb9ccba..f5279aa
--- a/scheduler/pom.xml
+++ b/scheduler/pom.xml
@@ -31,7 +31,7 @@
 
     <properties>
         <quartz.version>2.3.0</quartz.version>
-        <guava.version>23.5-jre</guava.version>
+        <guava.version>29.0-jre</guava.version>
         <simple-java-mail.version>5.0.3</simple-java-mail.version>
         <velocity.version>1.7</velocity.version>
     </properties>