diff --git a/approvaltests-util-tests/pom.xml b/approvaltests-util-tests/pom.xml
index 75bd6b32..273ff13f 100644
--- a/approvaltests-util-tests/pom.xml
+++ b/approvaltests-util-tests/pom.xml
@@ -50,7 +50,7 @@
         <dependency>
             <groupId>com.squareup.okhttp3</groupId>
             <artifactId>mockwebserver</artifactId>
-            <version>5.4.0</version>
+            <version>5.5.0</version>
         </dependency>
         <dependency>
             <groupId>com.approvaltests</groupId>