diff --git a/pom.xml b/pom.xml
index 5e1a028..89b59c6 100644
--- a/pom.xml
+++ b/pom.xml
@@ -121,7 +121,7 @@
         <dependency>
             <groupId>com.approvaltests</groupId>
             <artifactId>approvaltests</artifactId>
-            <version>13.2.1</version>
+            <version>18.5.0</version>
             <scope>test</scope>
         </dependency>
     </dependencies>