diff --git a/core/pom.xml b/core/pom.xml
old mode 100755
new mode 100644
index 34368b6..12a10cc
--- a/core/pom.xml
+++ b/core/pom.xml
@@ -20,7 +20,7 @@
         <dependency>
             <groupId>com.google.guava</groupId>
             <artifactId>guava</artifactId>
-            <version>24.1-jre</version>
+            <version>29.0-jre</version>
         </dependency>
         <dependency>
             <groupId>junit</groupId>