diff --git a/week 4/solution/B2B-tec week 4 solution/pom.xml b/week 4/solution/B2B-tec week 4 solution/pom.xml
index e140e6c..7a1b518 100644
--- a/week 4/solution/B2B-tec week 4 solution/pom.xml	
+++ b/week 4/solution/B2B-tec week 4 solution/pom.xml	
@@ -22,7 +22,7 @@
 		<dependency>
 			<groupId>com.google.code.gson</groupId>
 			<artifactId>gson</artifactId>
-			<version>2.8.5</version>
+			<version>2.8.9</version>
 		</dependency>
 	</dependencies>