diff --git a/squirrel-foundation/pom.xml b/squirrel-foundation/pom.xml
index ce34f4d..27cb9d7 100644
--- a/squirrel-foundation/pom.xml
+++ b/squirrel-foundation/pom.xml
@@ -1,3 +1,4 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <groupId>org.squirrelframework</groupId>
@@ -70,7 +71,7 @@
         <dependency>
             <groupId>com.google.guava</groupId>
             <artifactId>guava</artifactId>
-            <version>29.0-jre</version>
+            <version>30.0-jre</version>
         </dependency>
         <dependency>
             <groupId>org.slf4j</groupId>
@@ -205,4 +206,4 @@
             <url>https://oss.sonatype.org/content/repositories/snapshots</url>
         </snapshotRepository>
     </distributionManagement>
-</project>
+</project>
\ No newline at end of file