diff --git a/Plan/build.gradle b/Plan/build.gradle
index 26c95ca29..428d714a9 100644
--- a/Plan/build.gradle
+++ b/Plan/build.gradle
@@ -65,7 +65,7 @@ subprojects {
     ext.hikariVersion = "3.3.1"
     ext.slf4jVersion = "1.7.26"
     ext.geoIpVersion = "2.12.0"
-    ext.guavaVersion = "26.0-jre"
+    ext.guavaVersion = "28.0-jre"
     ext.bstatsVersion = "1.4"
 
     repositories {