diff --git a/htmlSanityCheck-gradle-plugin/src/test/groovy/org/aim42/htmlsanitycheck/HtmlSanityCheckTaskFunctionalTest.groovy b/htmlSanityCheck-gradle-plugin/src/test/groovy/org/aim42/htmlsanitycheck/HtmlSanityCheckTaskFunctionalTest.groovy
index 3698302d..a0aadd8c 100644
--- a/htmlSanityCheck-gradle-plugin/src/test/groovy/org/aim42/htmlsanitycheck/HtmlSanityCheckTaskFunctionalTest.groovy
+++ b/htmlSanityCheck-gradle-plugin/src/test/groovy/org/aim42/htmlsanitycheck/HtmlSanityCheckTaskFunctionalTest.groovy
@@ -16,7 +16,7 @@ class HtmlSanityCheckTaskFunctionalTest extends Specification {
private final static INVALID_HTML = """ """
private final static GRADLE_VERSIONS = [ // 6.x or older does not work!
'7.6.3', // latest 7.x
- '8.0.2', '8.1.1', '8.2.1', '8.3', '8.4', '8.5' // all 8.x (latest patches)
+ '8.0.2', '8.1.1', '8.2.1', '8.3', '8.4', '8.5', '8.6' // all 8.x (latest patches)
]
@Rule