diff --git a/testsuite/integration-arquillian/tests/other/adapters/pom.xml b/testsuite/integration-arquillian/tests/other/adapters/pom.xml
index 75a68ead6f..e37a0dcd23 100644
--- a/testsuite/integration-arquillian/tests/other/adapters/pom.xml
+++ b/testsuite/integration-arquillian/tests/other/adapters/pom.xml
@@ -84,6 +84,9 @@
         <exclude.test>-</exclude.test>
         <exclude.cors.tests>**/cors/*Test.java</exclude.cors.tests>
 
+        <!-- Use phantomjs as default browser for adapters, since javascript doesn't work correctly on htmlUnit (KEYCLOAK-4703) -->
+        <browser>phantomjs</browser>
+
     </properties>
 
     <modules>