diff --git a/pom.xml b/pom.xml
index b978c0e..c9f5765 100644
--- a/pom.xml
+++ b/pom.xml
@@ -36,7 +36,7 @@
         <dependency>
             <groupId>com.approvaltests</groupId>
             <artifactId>approvaltests</artifactId>
-            <version>9.3.0</version>
+            <version>18.4.0</version>
             <scope>test</scope>
         </dependency>
     </dependencies>