diff --git a/pom.xml b/pom.xml
index b2261cc..996a3d0 100644
--- a/pom.xml
+++ b/pom.xml
@@ -51,7 +51,7 @@
         <dependency>
             <groupId>com.google.guava</groupId>
             <artifactId>guava</artifactId>
-            <version>18.0</version>
+            <version>23.0</version>
         </dependency>
         <dependency>
             <groupId>org.yaml</groupId>