diff --git a/install_offline.sh b/install_offline.sh
index db085fb..31616d7 100755
--- a/install_offline.sh
+++ b/install_offline.sh
@@ -89,18 +89,26 @@ pip install --no-index --find-links=vendor/$PLATFORM -r requirements.txt
 # Test
 echo ""
 echo "Running tests..."
-python -m pytest -v tests/test_vectors.py || {
+
+# Optional: run pytest if available (dev-only)
+if python -c "import pytest" >/dev/null 2>&1; then
+  python -m pytest -v tests/test_vectors.py || {
     echo "ERROR: Tests failed!"
     exit 1
-}
+  }
+else
+  echo "⚠️  pytest not installed; skipping pytest suite."
+  echo "   (To enable: install dev deps or run 'pip install -r requirements-dev.txt' if available offline.)"
+fi
 
 echo ""
 echo "Running built-in smoke test..."
 python src/pyhdwallet.py test || {
-    echo "ERROR: Smoke test failed!"
-    exit 1
+  echo "ERROR: Smoke test failed!"
+  exit 1
 }
 
+
 echo ""
 echo "=========================================="
 echo "✓ Installation complete and verified!"