diff --git a/.github/workflows/Semgrep.yml b/.github/workflows/Semgrep.yml
index 307f8a12f..f4f6c40c2 100644
--- a/.github/workflows/Semgrep.yml
+++ b/.github/workflows/Semgrep.yml
@@ -34,7 +34,7 @@ jobs:
 
     steps:
       # Fetch project source with GitHub Actions Checkout.
-      - uses: actions/checkout@c85c95e3d7251135ab7dc9ce3241c5835cc595a9 # v3.5.3
+      - uses: actions/checkout@3df4ab11eba7bda6032a0b82a6bb43b11571feac # v3.5.3
       # Run the "semgrep ci" command on the command line of the docker image.
       - run: semgrep ci --sarif --output=semgrep.sarif
         env:
diff --git a/.github/workflows/executable.yml b/.github/workflows/executable.yml
index 19a5817c8..74635fe00 100644
--- a/.github/workflows/executable.yml
+++ b/.github/workflows/executable.yml
@@ -7,7 +7,7 @@ jobs:
     name: Build Executables
     runs-on: macos-latest
     steps:
-      - uses: actions/checkout@v1
+      - uses: actions/checkout@3df4ab11eba7bda6032a0b82a6bb43b11571feac
       - uses: actions/setup-node@v3
         with:
           node-version: 14
diff --git a/.github/workflows/lint.yml b/.github/workflows/lint.yml
index 195dc740a..f3ead35ba 100644
--- a/.github/workflows/lint.yml
+++ b/.github/workflows/lint.yml
@@ -9,7 +9,7 @@ jobs:
     name: Lint
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@3df4ab11eba7bda6032a0b82a6bb43b11571feac
       - uses: actions/setup-node@v3
         with:
           node-version: 14
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 803c70a8d..fa3f24c0c 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -6,7 +6,7 @@ jobs:
   publish:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@3df4ab11eba7bda6032a0b82a6bb43b11571feac
     - uses: actions/setup-node@v3
       with:
         node-version: 14
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 10fdaadcc..2107160cf 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -9,7 +9,7 @@ jobs:
     name: Build
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@3df4ab11eba7bda6032a0b82a6bb43b11571feac
       - uses: actions/setup-node@v3
         with:
           node-version: 14
@@ -58,7 +58,7 @@ jobs:
           - '@percy/webdriver-utils'
     runs-on: ${{ matrix.os }}
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@3df4ab11eba7bda6032a0b82a6bb43b11571feac
       - uses: actions/setup-node@v3
         with:
           node-version: ${{ matrix.node }}
diff --git a/.github/workflows/typecheck.yml b/.github/workflows/typecheck.yml
index a12081948..275dd66d9 100644
--- a/.github/workflows/typecheck.yml
+++ b/.github/workflows/typecheck.yml
@@ -9,7 +9,7 @@ jobs:
     name: Typecheck
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@3df4ab11eba7bda6032a0b82a6bb43b11571feac
       - uses: actions/setup-node@v3
         with:
           node-version: 14
diff --git a/.github/workflows/windows.yml b/.github/workflows/windows.yml
index f4b985017..5e3a1cfb9 100644
--- a/.github/workflows/windows.yml
+++ b/.github/workflows/windows.yml
@@ -9,7 +9,7 @@ jobs:
     name: Build
     runs-on: windows-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@3df4ab11eba7bda6032a0b82a6bb43b11571feac
       - uses: actions/setup-node@v3
         with:
           node-version: 14
@@ -57,7 +57,7 @@ jobs:
           - '@percy/webdriver-utils'
     runs-on: windows-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@3df4ab11eba7bda6032a0b82a6bb43b11571feac
       - uses: actions/setup-node@v3
         with:
           node-version: 14