diff --git a/action.yml b/action.yml
index 85bb2498..d307eaeb 100644
--- a/action.yml
+++ b/action.yml
@@ -97,20 +97,19 @@ runs:
 
     - name: Install coveralls reporter (Windows)
       if: startsWith(runner.os, 'Windows')
-      shell: bash
+      shell: pwsh
       run: |
-        mkdir -p ~/bin/
-        cd ~/bin/
-        curl -sLO https://github.com/coverallsapp/coverage-reporter/releases/latest/download/coveralls-windows.zip
-        curl -sLO https://github.com/coverallsapp/coverage-reporter/releases/latest/download/coveralls-checksums.txt
-        cat coveralls-checksums.txt | grep coveralls-windows.zip | sha256sum --check
-        zcat coveralls-windows.zip > coveralls.exe
-        rm coveralls-checksums.txt
-        echo ~/bin >> $GITHUB_PATH
+        New-Item -Path $env:HOME\bin -ItemType directory
+        Push-Location $env:HOME\bin
+        Invoke-WebRequest -Uri "https://github.com/coverallsapp/coverage-reporter/releases/latest/download/coveralls-windows.exe" -OutFile "coveralls.exe"
+        Invoke-WebRequest -Uri "https://github.com/coverallsapp/coverage-reporter/releases/latest/download/coveralls-checksums.txt" -OutFile "sha256sums.txt"
+        (Get-FileHash coveralls.exe).Hash -eq (Get-Content ./sha256sums.txt | Where-Object{$_ -match 'windows.exe'} | ForEach-Object{($_ -split "\s+")[0]})
+        Remove-Item *.txt -Force
+        echo $env:HOME\bin | Out-File -FilePath $env:GITHUB_PATH -Encoding utf8 -Append
 
     - name: Done report
       if: inputs.parallel-finished == 'true'
-      shell: bash
+      shell: ${{ startsWith(runner.os, 'Windows') && 'pwsh' || 'bash' }}
       run: >-
         coveralls done
         ${{ inputs.debug == 'true' && '--debug' || '' }}
@@ -128,7 +127,7 @@ runs:
 
     - name: Coverage report
       if: inputs.parallel-finished != 'true'
-      shell: bash
+      shell: ${{ startsWith(runner.os, 'Windows') && 'pwsh' || 'bash' }}
       run: >-
         coveralls report
         ${{ inputs.debug == 'true' && '--debug' || '' }}