diff --git a/.github/workflows/dev.yml b/.github/workflows/dev.yml
index 74ca70006c909..a28c2bc48d047 100644
--- a/.github/workflows/dev.yml
+++ b/.github/workflows/dev.yml
@@ -24,9 +24,9 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@f43a0e5ff2bd294095638e18286ca9a3d1956744  # v3
       - name: Setup Python
-        uses: actions/setup-python@v4
+        uses: actions/setup-python@0ae58361cdfd39e2950bed97a1e26aa20c3d8955  # v4
         with:
           python-version: "3.10"
       - name: Audit licenses
@@ -36,8 +36,8 @@ jobs:
     name: Use prettier to check formatting of documents
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
-      - uses: actions/setup-node@v3
+      - uses: actions/checkout@f43a0e5ff2bd294095638e18286ca9a3d1956744  # v3
+      - uses: actions/setup-node@3235b876344d2a9aa001b8d1453c930bba69e610  # v3
         with:
           node-version: "14"
       - name: Prettier check