diff --git a/bucket/grails.json b/bucket/grails.json
index d0608c34e6..5fa9f9674f 100644
--- a/bucket/grails.json
+++ b/bucket/grails.json
@@ -1,14 +1,14 @@
 {
-    "version": "5.2.1",
+    "version": "3.3.15",
     "description": "A powerful Groovy-based web application framework for the JVM built on top of Spring Boot.",
     "homepage": "https://grails.org",
     "license": "Apache-2.0",
     "suggest": {
         "JDK": "java/openjdk"
     },
-    "url": "https://github.com/grails/grails-core/releases/download/v5.2.1/grails-5.2.1.zip",
-    "hash": "be912590e2b565c5010c33faf3e3d008c80a8252764a861be790a8836dc05218",
-    "extract_dir": "grails-5.2.1",
+    "url": "https://github.com/grails/grails-core/releases/download/v3.3.15/grails-3.3.15.zip",
+    "hash": "7b84820cd75ce28adde26f5f72115366cd9145cea50e9ac58798656dbf15515a",
+    "extract_dir": "grails-3.3.15",
     "bin": "bin\\grails.bat",
     "env_set": {
         "GRAILS_HOME": "$dir"