diff --git a/iching-doc/pom.xml b/iching-doc/pom.xml
old mode 100755
new mode 100644
index a43af9c..c9566e4
--- a/iching-doc/pom.xml
+++ b/iching-doc/pom.xml
@@ -88,7 +88,7 @@
         <dependency>
             <groupId>com.google.guava</groupId>
             <artifactId>guava</artifactId>
-            <version>26.0-jre</version>
+            <version>29.0-jre</version>
         </dependency>
         <dependency>
             <groupId>net.logstash.logback</groupId>