diff --git a/functions-hmac/pom.xml b/functions-hmac/pom.xml
index 6d5f87d..ce5a3ee 100644
--- a/functions-hmac/pom.xml
+++ b/functions-hmac/pom.xml
@@ -47,7 +47,7 @@
 		<dependency>
 			<groupId>junit</groupId>
 			<artifactId>junit</artifactId>
-			<version>4.12</version>
+			<version>4.13.1</version>
 			<scope>test</scope>
 		</dependency>
 		<dependency>