diff --git a/actions/get-package-manager/action.yml b/actions/get-package-manager/action.yml
index 94e92fc..5b09a18 100644
--- a/actions/get-package-manager/action.yml
+++ b/actions/get-package-manager/action.yml
@@ -26,20 +26,20 @@ runs:
       shell: bash
       run: |
         # Yarn
-        if [[ -f "yarn.lock" ]]; then
-          echo "package-manager=yarn" >> $GITHUB_OUTPUT
-          echo "cache-dependency-path=**/yarn.lock" >> $GITHUB_OUTPUT
-          echo "install-command=yarn install --frozen-lockfile" >> $GITHUB_OUTPUT
-          echo "run-script-command=yarn" >> $GITHUB_OUTPUT
+        if [ -f "yarn.lock" ]; then
+          echo "package-manager=yarn" >> "$GITHUB_OUTPUT"
+          echo "cache-dependency-path=**/yarn.lock" >> "$GITHUB_OUTPUT"
+          echo "install-command=yarn install --frozen-lockfile" >> "$GITHUB_OUTPUT"
+          echo "run-script-command=yarn" >> "$GITHUB_OUTPUT"
           exit 0
         fi
 
         # NPM
-        if [[ -f "package-lock.json" ]]; then
-          echo "package-manager=npm" >> $GITHUB_OUTPUT
-          echo "cache-dependency-path=**/package-lock.json" >> $GITHUB_OUTPUT
-          echo "install-command=npm ci" >> $GITHUB_OUTPUT
-          echo "run-script-command=npm run" >> $GITHUB_OUTPUT
+        if [ -f "package-lock.json" ]; then
+          echo "package-manager=npm" >> "$GITHUB_OUTPUT"
+          echo "cache-dependency-path=**/package-lock.json" >> "$GITHUB_OUTPUT"
+          echo "install-command=npm ci" >> "$GITHUB_OUTPUT"
+          echo "run-script-command=npm run" >> "$GITHUB_OUTPUT"
           exit 0
         fi