diff --git a/htmlSanityCheck-gradle-plugin/README.adoc b/htmlSanityCheck-gradle-plugin/README.adoc
index a934d57f..15dc3f5b 100644
--- a/htmlSanityCheck-gradle-plugin/README.adoc
+++ b/htmlSanityCheck-gradle-plugin/README.adoc
@@ -318,11 +318,23 @@ htmlSanityCheck {
 
 The Plugin has been tested with the following Gradle versions:
 
-[source]
+[source,groovy]
 .Tested Gradle versions
 ----
-include::src/test/groovy/org/aim42/htmlsanitycheck/gradle/HtmlSanityCheckTaskFunctionalTest.groovy[tag=tested-gradle-versions,indent=0]
+include::src/test/groovy/org/aim42/htmlsanitycheck/gradle/HtmlSanityCheckTaskFunctionalSpec.groovy[tag=tested-gradle-versions,indent=0]
+----
+
+[NOTE]
+====
+The full range of Gradle versions is only tested in CI (GitHub action).
+The local test only tests the latest Gradle version:
+
+[source,groovy]
+.Restricting versions to the latest versions locally
+----
+include::src/test/groovy/org/aim42/htmlsanitycheck/gradle/HtmlSanityCheckTaskFunctionalSpec.groovy[tag=restrict-gradle-versions-locally,indent=0]
 ----
+====
 
 [[sec:development-versions]]
 == Development versions
diff --git a/htmlSanityCheck-gradle-plugin/src/test/groovy/org/aim42/htmlsanitycheck/gradle/HtmlSanityCheckTaskFunctionalSpec.groovy b/htmlSanityCheck-gradle-plugin/src/test/groovy/org/aim42/htmlsanitycheck/gradle/HtmlSanityCheckTaskFunctionalSpec.groovy
index 738c9433..d2912dfb 100644
--- a/htmlSanityCheck-gradle-plugin/src/test/groovy/org/aim42/htmlsanitycheck/gradle/HtmlSanityCheckTaskFunctionalSpec.groovy
+++ b/htmlSanityCheck-gradle-plugin/src/test/groovy/org/aim42/htmlsanitycheck/gradle/HtmlSanityCheckTaskFunctionalSpec.groovy
@@ -1,8 +1,11 @@
 package org.aim42.htmlsanitycheck.gradle
 
+
 import org.gradle.testkit.runner.GradleRunner
 import org.jsoup.Jsoup
 import org.jsoup.nodes.Element
+import org.slf4j.Logger
+import org.slf4j.LoggerFactory
 import spock.lang.Unroll
 
 import static org.gradle.testkit.runner.TaskOutcome.FAILED
@@ -10,15 +13,28 @@ import static org.gradle.testkit.runner.TaskOutcome.SUCCESS
 
 class HtmlSanityCheckTaskFunctionalSpec extends HtmlSanityCheckBaseSpec {
 
-    private final static GRADLE_VERSIONS = [
+    // @Slf4j does not initialize logger for static initializer
+    private static final Logger log = LoggerFactory.getLogger(HtmlSanityCheckTaskFunctionalSpec)
+
+    private final static List<String> getVersions(List<String> versions) {
+        // tag::restrict-gradle-versions-locally[]
+        def result = System.getenv("GITHUB_ACTION") ? versions : [versions[-1]]
+        // end::restrict-gradle-versions-locally[]
+        log.warn("Testing HSC Gradle plugin with versions '{}'", result)
+        return result
+    }
+
+    private final static String[] GRADLE_VERSIONS = getVersions([
             // tag::tested-gradle-versions[]
+            // Test execution in CI will execute all versions.
+            // Local test is restricted to latest version
             // 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', '8.6', '8.7', '8.8', '8.9',
             '8.10' // all 8.x minor versions (latest patch release)
             // end::tested-gradle-versions[]
-    ]
+    ])
 
     @Unroll
     def "can execute htmlSanityCheck task with Gradle version #gradleVersion"() {
@@ -27,7 +43,7 @@ class HtmlSanityCheckTaskFunctionalSpec extends HtmlSanityCheckBaseSpec {
         createBuildFile()
 
         when:
-        def result = runnerForHtmlSanityCheckTask(gradleVersion).build()
+        def result = runnerForHtmlSanityCheckTask(gradleVersion as String).build()
 
         then:
         result.task(":htmlSanityCheck").outcome == SUCCESS
@@ -46,7 +62,7 @@ class HtmlSanityCheckTaskFunctionalSpec extends HtmlSanityCheckBaseSpec {
 
         when:
 
-        def result = runnerForHtmlSanityCheckTask(gradleVersion).buildAndFail()
+        def result = runnerForHtmlSanityCheckTask(gradleVersion as String).buildAndFail()
 
         then:
         result.task(":htmlSanityCheck").outcome == FAILED
@@ -69,7 +85,7 @@ class HtmlSanityCheckTaskFunctionalSpec extends HtmlSanityCheckBaseSpec {
         """)
 
         when:
-        def result = runnerForHtmlSanityCheckTask(gradleVersion).build()
+        def result = runnerForHtmlSanityCheckTask(gradleVersion as String).build()
 
         then:
         result.task(":htmlSanityCheck").outcome == SUCCESS
@@ -87,7 +103,7 @@ class HtmlSanityCheckTaskFunctionalSpec extends HtmlSanityCheckBaseSpec {
         """)
 
         when:
-        runnerForHtmlSanityCheckTask(gradleVersion).build()
+        runnerForHtmlSanityCheckTask(gradleVersion as String).build()
         def htmlReportFile = new File(testProjectDir.root, "build/index.html")
 
         then: