diff --git a/packages/hydrojudge/package.json b/packages/hydrojudge/package.json
index b57564e63..ddaaca7f1 100644
--- a/packages/hydrojudge/package.json
+++ b/packages/hydrojudge/package.json
@@ -1,7 +1,7 @@
 {
     "name": "@hydrooj/hydrojudge",
     "bin": "bin/hydrojudge.js",
-    "version": "2.20.2",
+    "version": "2.20.3",
     "main": "package.json",
     "author": "undefined <i@undefined.moe>",
     "repository": "https://github.com/hydro-dev/Hydro.git",
diff --git a/packages/hydrojudge/setting.yaml b/packages/hydrojudge/setting.yaml
index 9fa0f23f7..a3af6198d 100644
--- a/packages/hydrojudge/setting.yaml
+++ b/packages/hydrojudge/setting.yaml
@@ -47,6 +47,10 @@ parallelism:
   name: parallelism
   desc: Runner parallelism
   default: 2
+singleTaskParallelism:
+  type: number
+  name: singleTaskParallelism
+  default: 2
 rate:
   type: float
   name: rate