diff --git a/.github/workflows/build-check-install.yaml b/.github/workflows/build-check-install.yaml
index e863cce2..c68a741a 100644
--- a/.github/workflows/build-check-install.yaml
+++ b/.github/workflows/build-check-install.yaml
@@ -527,7 +527,8 @@ jobs:
       - name: Get changed files 📃
         id: changed-files
         if: inputs.selected-shinytests == true
-        uses: tj-actions/changed-files@v45
+        # v45.0.8
+        uses: tj-actions/changed-files@a284dc1814e3fd07f2e34267fc8f81227ed29fb8
         with:
           path: ${{ github.event.repository.name }}/${{ inputs.package-subdirectory }}
           base_sha: "main"
diff --git a/.github/workflows/grammar.yaml b/.github/workflows/grammar.yaml
index a5671181..d02c89f4 100644
--- a/.github/workflows/grammar.yaml
+++ b/.github/workflows/grammar.yaml
@@ -90,7 +90,8 @@ jobs:
 
       - name: Get changed files 🗞
         id: changed-files
-        uses: tj-actions/changed-files@v41
+        # v45.0.8
+        uses: tj-actions/changed-files@a284dc1814e3fd07f2e34267fc8f81227ed29fb8
         with:
           separator: ","
           files: |
diff --git a/.github/workflows/style.yaml b/.github/workflows/style.yaml
index a918293a..5d27181c 100644
--- a/.github/workflows/style.yaml
+++ b/.github/workflows/style.yaml
@@ -102,7 +102,8 @@ jobs:
 
       - name: Get changed files 🗞
         id: changed-files
-        uses: tj-actions/changed-files@v41
+        # v45.0.8
+        uses: tj-actions/changed-files@a284dc1814e3fd07f2e34267fc8f81227ed29fb8
         with:
           path: ${{ github.event.repository.name }}
           separator: ","