diff --git a/setup-python/action.yml b/setup-python/action.yml
index 4b748106..79c6530a 100644
--- a/setup-python/action.yml
+++ b/setup-python/action.yml
@@ -82,20 +82,23 @@ runs:
       if: runner.arch == 'ARM64' || inputs.force-pyenv != 'false'
       shell: sh
       run: |
-        export PYENV_ROOT="$HOME/.pyenv"
-        echo "PYENV_ROOT=$HOME/.pyenv" >> $GITHUB_ENV
-        
-        if [ ! -d "$PYENV_ROOT" ]; then
-          echo "  ====  installing pyenv at: $PYENV_ROOT"
-          curl https://pyenv.run | bash
-        else
-          echo "  ====  pyenv directory found at: $PYENV_ROOT"
+        env | sort
+
+        if [ -z "${PYENV_ROOT+x}" ]; then
+          export PYENV_ROOT="$HOME/.pyenv"
+          echo "PYENV_ROOT=$HOME/.pyenv" >> $GITHUB_ENV
+
+          if [ ! -d "$PYENV_ROOT" ]; then
+            echo "  ====  installing pyenv at: $PYENV_ROOT"
+            curl https://pyenv.run | bash
+          else
+            echo "  ====  pyenv directory found at: $PYENV_ROOT"
+          fi
+
+          export PATH="$PYENV_ROOT/bin:$PATH"
+          echo "PATH=$PYENV_ROOT/bin:$PATH" >> $GITHUB_ENV
         fi
-        
-        export PATH="$PYENV_ROOT/bin:$PATH"
-        echo "PATH=$PYENV_ROOT/bin:$PATH" >> $GITHUB_ENV
-        
-        # Ensure pyenv is up to date
+
         if ! (pyenv -h > /dev/null 2> /dev/null); then
           echo "  ====  pyenv -h exited with non-zero status"
           type pyenv || true
@@ -105,6 +108,8 @@ runs:
           ls -l "$PYENV_ROOT/bin" || true
           exit 1
         fi
+
+        # Ensure pyenv is up to date
         pyenv update
         
         FULL_PY_VERSION=$(pyenv install --list | grep "^  ${{ inputs.python-version }}" | grep -v 'dev' | tail -n 1)