diff --git a/docs/manual/spring-security-oauth2-authorization-server-docs-manual.gradle b/docs/manual/spring-security-oauth2-authorization-server-docs-manual.gradle
index 837e6be..cad11fd 100644
--- a/docs/manual/spring-security-oauth2-authorization-server-docs-manual.gradle
+++ b/docs/manual/spring-security-oauth2-authorization-server-docs-manual.gradle
@@ -31,3 +31,7 @@ def resolvedVersions(Configuration configuration) {
 			.collectEntries { [(it.name + "-version"): it.moduleVersion.id.version] }
 	}
 }
+
+repositories {
+	maven { url "https://repo.spring.io/release" }
+}