diff --git a/back-end/crawler/pom.xml b/back-end/crawler/pom.xml
index 51ec67c..ae4a271 100644
--- a/back-end/crawler/pom.xml
+++ b/back-end/crawler/pom.xml
@@ -77,7 +77,7 @@
         <dependency>
             <groupId>com.google.code.gson</groupId>
             <artifactId>gson</artifactId>
-            <version>2.8.2</version>
+            <version>2.8.9</version>
         </dependency>
         <dependency>
             <groupId>com.twitter</groupId>