diff --git a/docs/guide/guide.gradle b/docs/guide/guide.gradle
index 815f214..6792198 100644
--- a/docs/guide/guide.gradle
+++ b/docs/guide/guide.gradle
@@ -15,6 +15,15 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+buildscript {
+    repositories {
+        mavenCentral()
+    }
+    dependencies {
+        classpath("org.ajoberstar.grgit:grgit-core:$grgitVersion")
+    }
+}
+
 plugins {
     id 'org.kordamp.gradle.guide'
     id 'org.ajoberstar.git-publish'
diff --git a/gradle.properties b/gradle.properties
index d6ae742..4c7dff4 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -27,4 +27,5 @@ projectReactorVersion = 3.4.18
 micronautVersion = 4.2.0
 micronautGradlePluginVersion = 4.2.0
 micronautGrailsVersion=3.1.0-micronaut-1.0
+grgitVersion=5.0.0
 spockVersion=2.0-groovy-2.5