diff --git a/examples/micronaut-grails-example/gradle.properties b/examples/micronaut-grails-example/gradle.properties
index f6419a19..b252ea67 100644
--- a/examples/micronaut-grails-example/gradle.properties
+++ b/examples/micronaut-grails-example/gradle.properties
@@ -16,8 +16,8 @@
 # limitations under the License.
 #
 
-grailsVersion=5.1.1
-gorm.version=7.1.2
+grailsVersion=4.0.4
+gorm.version=7.0.6.RELEASE
 org.gradle.daemon=true
 org.gradle.parallel=true
 org.gradle.jvmargs=-Dfile.encoding=UTF-8 -Xmx1024M
diff --git a/examples/micronaut-grails-example/src/test/groovy/micronaut/grails/example/IntegrationSpec.groovy b/examples/micronaut-grails-example/src/test/groovy/micronaut/grails/example/IntegrationSpec.groovy
index 22b5cba4..9dc7840d 100644
--- a/examples/micronaut-grails-example/src/test/groovy/micronaut/grails/example/IntegrationSpec.groovy
+++ b/examples/micronaut-grails-example/src/test/groovy/micronaut/grails/example/IntegrationSpec.groovy
@@ -29,10 +29,8 @@ class IntegrationSpec extends Specification {
     @Autowired MicronautJpaGenerator generator
 
     void 'application started'() {
-        when:
-            new URL("http://localhost:$serverPort/test/health").text
-        then:
-            noExceptionThrown()
+        expect:
+            new URL("http://localhost:$serverPort/test/health").text == 'OK'
     }
 
 }
diff --git a/gradle.properties b/gradle.properties
index 479f3e74..83e2ac0e 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -20,12 +20,12 @@ slug=agorapulse/micronaut-grails
 group=com.agorapulse
 version = 3.0.0-SNAPSHOT
 
-micronautVersion = 2.5.13
-grailsVersion=5.1.1
+micronautVersion = 1.3.7
+grailsVersion=4.0.4
 gruVersion = 0.9.4
 druVersion = 0.8.1
-groovyVersion = 3.0.9
-spockVersion = 2.0-groovy-3.0
+groovyVersion = 2.5.8
+spockVersion = 2.0-groovy-2.5
 junitVersion = 5.7.2
 awsSdkVersion = 1.11.656
 awsSdk2Version = 2.9.24