diff --git a/.github/workflows/deps-update.yml b/.github/workflows/deps-update.yml
index 893a325..cdf6d42 100644
--- a/.github/workflows/deps-update.yml
+++ b/.github/workflows/deps-update.yml
@@ -24,9 +24,7 @@ jobs:
 
       - name: ⬆️ Update Dependencies
         id: deps
-        run: |
-          deno task update -w --summary=../title.txt --report=../body.md
-          deno task lock
+        run: deno task update -w --unstable-lock --summary=../title.txt --report=../body.md
 
       - name: 🔍 Check the Result
         id: result
diff --git a/deno.json b/deno.json
index 9f295d2..a345aea 100644
--- a/deno.json
+++ b/deno.json
@@ -4,7 +4,6 @@
   "test": { "include": ["src/", "test/"] },
   "tasks": {
     "gen": "deno run --allow-read --allow-write ./src/main.ts",
-    "lock": "deno cache --lock-write ./**/*.ts",
     "test": "deno test --allow-read --allow-write",
     "update": "deno run --allow-env --allow-read --allow-write --allow-run=git,deno --allow-net=deno.land https://deno.land/x/molt/cli.ts deno.json"
   },