diff --git a/gradle.properties b/gradle.properties
index 50af794..4ee42e0 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -1,9 +1,9 @@
 group = org.xbib.groovy
 name = groovy-extensions
-version = 4.0.0
+version = 3.0.9.0
 
 org.gradle.warning.mode = ALL
-groovy.version = 4.0.0
+groovy.version = 3.0.9
 gradle.wrapper.version = 7.3.2
 files.version = 3.0.0
 ftp.version = 2.6.0
diff --git a/gradle/compile/groovy.gradle b/gradle/compile/groovy.gradle
index b7a58d4..c70f6b9 100644
--- a/gradle/compile/groovy.gradle
+++ b/gradle/compile/groovy.gradle
@@ -1,17 +1,17 @@
 apply plugin: 'groovy'
 
 dependencies {
-    implementation "org.apache.groovy:groovy:${project.property('groovy.version')}"
+    implementation "org.codehaus.groovy:groovy:${project.property('groovy.version')}"
 }
 
 compileGroovy {
-    sourceCompatibility = JavaVersion.VERSION_17
-    targetCompatibility = JavaVersion.VERSION_17
+    sourceCompatibility = JavaVersion.VERSION_11
+    targetCompatibility = JavaVersion.VERSION_11
 }
 
 compileTestGroovy {
-    sourceCompatibility = JavaVersion.VERSION_17
-    targetCompatibility = JavaVersion.VERSION_17
+    sourceCompatibility = JavaVersion.VERSION_11
+    targetCompatibility = JavaVersion.VERSION_11
 }
 
 tasks.withType(GroovyCompile) {
diff --git a/gradle/compile/java.gradle b/gradle/compile/java.gradle
index 224b9f4..c9bba7f 100644
--- a/gradle/compile/java.gradle
+++ b/gradle/compile/java.gradle
@@ -6,13 +6,13 @@ java {
 }
 
 compileJava {
-    sourceCompatibility = JavaVersion.VERSION_17
-    targetCompatibility = JavaVersion.VERSION_17
+    sourceCompatibility = JavaVersion.VERSION_11
+    targetCompatibility = JavaVersion.VERSION_11
 }
 
 compileTestJava {
-    sourceCompatibility = JavaVersion.VERSION_17
-    targetCompatibility = JavaVersion.VERSION_17
+    sourceCompatibility = JavaVersion.VERSION_11
+    targetCompatibility = JavaVersion.VERSION_11
 }
 
 jar {