diff --git a/.github/actions/download-cantera-test/action.yml b/.github/actions/download-cantera-test/action.yml
index 38a77d1..d938705 100644
--- a/.github/actions/download-cantera-test/action.yml
+++ b/.github/actions/download-cantera-test/action.yml
@@ -7,29 +7,41 @@ inputs:
 outputs:
   test-root:
     description: The root folder where the tests are located
-    value: ${{ runner.temp }}
+    value: ${{ steps.sanitize.outputs.DESTINATION_PATH }}
 
 runs:
   using: "composite"
   steps:
+  - name: Sanitize the destination path
+    id: sanitize
+    run: |
+      $DESTINATION_PATH = "${{ steps.sanitize.outputs.DESTINATION_PATH }}" -replace "\\", "/"
+      echo "DESTINATION_PATH=$DESTINATION_PATH" | Out-File -FilePath $Env:GITHUB_OUTPUT -Encoding utf8 -Append
+    if: runner.os == 'Windows'
+    shell: pwsh
+  - name: Sanitize the destination path
+    id: sanitize
+    run: echo "DESTINATION_PATH=${{ steps.sanitize.outputs.DESTINATION_PATH }}" >> $GITHUB_OUTPUT
+    shell: bash
+    if: runner.os != 'Windows'
   - name: Restore cached the test files
     uses: actions/cache/restore@v4
     id: restore-cache
     with:
-      path: ${{ runner.temp }}/test
+      path: ${{ steps.sanitize.outputs.DESTINATION_PATH }}/test
       # Bump the integer to bust the cache
-      key: ${{ inputs.incoming-sha }}-0
+      key: ${{ inputs.incoming-sha }}-${{ runner.os }}-0
   - name: Download and unpack the tarball
     if: steps.restore-cache.outputs.cache-hit != 'true'
     run: |
-      curl -fsSL "https://github.com/cantera/cantera/archive/${{ inputs.incoming-sha }}.tar.gz" -o ${{ runner.temp }}/cantera.tar.gz
-      tar -xzf ${{ runner.temp }}/cantera.tar.gz --strip-components=1 -C ${{ runner.temp }} "cantera-${{ inputs.incoming-sha }}/test"
-      rm ${{ runner.temp }}/cantera.tar.gz
+      curl -fsSL "https://github.com/cantera/cantera/archive/${{ inputs.incoming-sha }}.tar.gz" -o ${{ steps.sanitize.outputs.DESTINATION_PATH }}/cantera.tar.gz
+      tar -xzf ${{ steps.sanitize.outputs.DESTINATION_PATH }}/cantera.tar.gz --strip-components=1 -C ${{ steps.sanitize.outputs.DESTINATION_PATH }} "cantera-${{ inputs.incoming-sha }}/test"
+      rm ${{ steps.sanitize.outputs.DESTINATION_PATH }}/cantera.tar.gz
     shell: bash
   - name: Save the test file cache
     uses: actions/cache/save@v4
     if: always() && steps.restore-cache.outputs.cache-hit != true
     id: save-cache
     with:
-      path: ${{ runner.temp }}/test
+      path: ${{ steps.sanitize.outputs.DESTINATION_PATH }}/test
       key: ${{ steps.restore-cache.outputs.cache-primary-key }}