diff --git a/packages/hydrojudge/package.json b/packages/hydrojudge/package.json
index d659585e3..e4e3cf3c8 100644
--- a/packages/hydrojudge/package.json
+++ b/packages/hydrojudge/package.json
@@ -1,7 +1,7 @@
 {
     "name": "@hydrooj/hydrojudge",
     "bin": "bin/hydrojudge.js",
-    "version": "2.1.21",
+    "version": "2.1.22",
     "main": "package.json",
     "author": "masnn",
     "repository": "https://github.com/hydro-dev/Hydro.git",
diff --git a/packages/hydrojudge/src/hosts/vj4.ts b/packages/hydrojudge/src/hosts/vj4.ts
index 1fa407f3a..bef488d8c 100644
--- a/packages/hydrojudge/src/hosts/vj4.ts
+++ b/packages/hydrojudge/src/hosts/vj4.ts
@@ -74,7 +74,7 @@ class JudgeTask {
         this.tmpdir = path.resolve(TEMP_DIR, 'tmp', this.host, this.rid);
         this.clean = [];
         fs.ensureDirSync(this.tmpdir);
-        tmpfs.mount(this.tmpdir, '64m');
+        tmpfs.mount(this.tmpdir, '256m');
         log.info('Submission: %s/%s/%s pid=%s', this.host, this.domain_id, this.rid, this.pid);
         try {
             if (this.type === 0) await this.doSubmission();
diff --git a/packages/hydrojudge/src/service.ts b/packages/hydrojudge/src/service.ts
index ba3b5da5d..65bacc111 100644
--- a/packages/hydrojudge/src/service.ts
+++ b/packages/hydrojudge/src/service.ts
@@ -215,7 +215,7 @@ async function postInit() {
                 this.tmpdir = path.resolve(tmpdir(), 'tmp', this.rid);
                 this.clean = [];
                 fs.ensureDirSync(this.tmpdir);
-                tmpfs.mount(this.tmpdir, '64m');
+                tmpfs.mount(this.tmpdir, '256m');
                 logger.info(`Submission: ${this.rid}`, { pid: this.pid });
                 if (this.config.input) await this.run();
                 else if (this.config.hack) await this.hack();
diff --git a/packages/hydrojudge/src/sysinfo.ts b/packages/hydrojudge/src/sysinfo.ts
index ab863d92a..aa32092b0 100644
--- a/packages/hydrojudge/src/sysinfo.ts
+++ b/packages/hydrojudge/src/sysinfo.ts
@@ -47,7 +47,7 @@ int main(){
         };
         context.tmpdir = path.resolve(tmpdir(), 'hydro', 'tmp', 'sysinfo');
         fs.ensureDirSync(context.tmpdir);
-        tmpfs.mount(context.tmpdir, '64m');
+        tmpfs.mount(context.tmpdir, '32m');
         await judge(context).catch((e) => console.error(e));
         // eslint-disable-next-line no-await-in-loop
         for (const clean of context.clean) await clean().catch(noop);