diff --git a/app/code/Magento/Catalog/view/frontend/templates/product/view/addtocart.phtml b/app/code/Magento/Catalog/view/frontend/templates/product/view/addtocart.phtml
index 9c18a18ff5837..baed8c1ce04de 100644
--- a/app/code/Magento/Catalog/view/frontend/templates/product/view/addtocart.phtml
+++ b/app/code/Magento/Catalog/view/frontend/templates/product/view/addtocart.phtml
@@ -20,6 +20,7 @@
                 <input type="number"
                        name="qty"
                        id="qty"
+                       min="0"
                        value="<?= /* @escapeNotVerified */ $block->getProductDefaultQty() * 1 ?>"
                        title="<?= /* @escapeNotVerified */ __('Qty') ?>"
                        class="input-text qty"
diff --git a/app/code/Magento/Checkout/view/frontend/templates/cart/item/configure/updatecart.phtml b/app/code/Magento/Checkout/view/frontend/templates/cart/item/configure/updatecart.phtml
index c1db2f7775ca8..bfb7ddc55cda6 100644
--- a/app/code/Magento/Checkout/view/frontend/templates/cart/item/configure/updatecart.phtml
+++ b/app/code/Magento/Checkout/view/frontend/templates/cart/item/configure/updatecart.phtml
@@ -20,6 +20,7 @@
                     <input type="number"
                            name="qty"
                            id="qty"
+                           min="0"
                            value=""
                            title="<?= /* @escapeNotVerified */ __('Qty') ?>"
                            class="input-text qty"