diff --git a/pom.xml b/pom.xml
index 69bb4e12..56de5eac 100644
--- a/pom.xml
+++ b/pom.xml
@@ -69,7 +69,7 @@
     <dependency>
       <groupId>com.google.guava</groupId>
       <artifactId>guava</artifactId>
-      <version>r08</version>
+      <version>r09</version>
       <scope>compile</scope>
     </dependency>
     <!-- optional dependencies -->