diff --git a/java_gen/pre-written/pom.xml b/java_gen/pre-written/pom.xml
index 338172f..a7fae3e 100644
--- a/java_gen/pre-written/pom.xml
+++ b/java_gen/pre-written/pom.xml
@@ -59,7 +59,7 @@
         <dependency>
             <groupId>com.google.guava</groupId>
             <artifactId>guava</artifactId>
-            <version>15.0</version>
+            <version>17.0</version>
         </dependency>
         <dependency>
             <groupId>org.slf4j</groupId>