diff --git a/.github/workflows/Pipeline.yml b/.github/workflows/Pipeline.yml
index abe74a5..2b8c8dd 100644
--- a/.github/workflows/Pipeline.yml
+++ b/.github/workflows/Pipeline.yml
@@ -67,6 +67,8 @@ jobs:
       - name: Verify on Linux or macOS
         if: matrix.name == 'Ubuntu' || matrix.name == 'macOS'
         run: |
+          printf "%s\n" "${PATH}"
+
           which ghdl
           ghdl --version
 
diff --git a/action.yml b/action.yml
index cbac6e9..59add42 100644
--- a/action.yml
+++ b/action.yml
@@ -56,16 +56,28 @@ inputs:
 runs:
   using: composite
   steps:
+    - name: Detect correct shell
+      id: shell
+      shell: bash
+      run: |
+        # Detect correct shell
+        if [[ "${{ runner.os }}" == "Windows" && "${{ inputs.runtime }}" != "" ]]; then
+          printf "shell=msys2 {0}" >> $GITHUB_OUTPUT
+        else
+          printf "shell=bash" >> $GITHUB_OUTPUT
+        fi
+
     - name: Update Bash on macOS
       if: runner.os == 'macOS'
       shell: bash
       run: |
+        # Update Bash on macOS
         brew install bash
 
     - name: Download and install GHDL
       id: generic
       if: runner.os == 'Linux' || runner.os == 'macOS' || ( runner.os == 'Windows' && inputs.runtime != '' )
-      shell: bash
+      shell: ${{ steps.shell.outputs.shell }}
       run: |
         # Download and install GHDL
         ANSI_LIGHT_RED=$'\x1b[91m'
@@ -105,15 +117,21 @@ runs:
           fi
           if [[ "${{ inputs.runtime }}" == "mingw64" ]]; then
             osRuntime="mingw64"
+
+            printf "::group::${ANSI_LIGHT_BLUE}%s${ANSI_NOCOLOR}\n" "Installing 'jq' file ..."
+            pacman -S --noconfirm mingw64/mingw-w64-x86_64-jq
+            printf "::endgroup::\n"
           elif [[ "${{ inputs.runtime }}" == "ucrt64" ]]; then
             osRuntime="ucrt4"
+
+            printf "::group::${ANSI_LIGHT_BLUE}%s${ANSI_NOCOLOR}\n" "Installing 'jq' file ..."
+            pacman -S --noconfirm ucrt64/mingw-w64-ucrt-x86_64-jq
+            printf "::endgroup::\n"
           else
             printf "::error title=%s::%s\n" "setup-ghdl" "Unsupported MSYS 2 runtime '${{ inputs.runtime }}'."
             exit 1
           fi
 
-          cmd /c ver
-
           osName="Windows"
           osMajorVersion="2022"
           osArchitecture="x86-64"