diff --git a/.github/workflows/scheduler.yml b/.github/workflows/scheduler.yml
index d7d7265..f58ca73 100644
--- a/.github/workflows/scheduler.yml
+++ b/.github/workflows/scheduler.yml
@@ -23,10 +23,10 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v6
+        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd  # v6.0.2
 
       - name: Checkout dist
-        uses: actions/checkout@v6
+        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd  # v6.0.2
         with:
           ref: dist
           path: dist
@@ -34,7 +34,7 @@ jobs:
           fetch-depth: 0
 
       - name: Set node
-        uses: actions/setup-node@v6
+        uses: actions/setup-node@6044e13b5dc448c55e2357c09f80417699197238  # v6.2.0
         with:
           node-version: lts/*
 
@@ -85,7 +85,7 @@ jobs:
 
       - name: Upload artifacts
         if: github.event_name == 'pull_request'
-        uses: actions/upload-artifact@v6
+        uses: actions/upload-artifact@b7c566a772e6b6bfb58ed0dc250532a479d7789f  # v6.0.0
         with:
           name: dist
           path: dist