diff --git a/proxy/build.gradle b/proxy/build.gradle
index bde1cf168..54afc3da0 100644
--- a/proxy/build.gradle
+++ b/proxy/build.gradle
@@ -28,6 +28,7 @@ jar {
         attributes 'Implementation-Version': version
         attributes 'Implementation-Vendor': "Velocity Contributors"
         attributes 'Multi-Release': 'true'
+        attributes 'Allow-Opens': 'java.base/java.lang'
     }
 }