diff --git a/package-lock.json b/package-lock.json
index 8acb229..838f5bb 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -2770,14 +2770,14 @@
       }
     },
     "imagemin-pngquant": {
-      "version": "7.0.0",
-      "resolved": "https://registry.npmjs.org/imagemin-pngquant/-/imagemin-pngquant-7.0.0.tgz",
-      "integrity": "sha512-FXBz8lfvI+noraZbNCE0AUDUng/2+Cv5W0F/nUGGjKdzb8AnN1f0JzVxH2aYj7SQxOdYYatvfNbITIZpaFATZg==",
+      "version": "8.0.0",
+      "resolved": "https://registry.npmjs.org/imagemin-pngquant/-/imagemin-pngquant-8.0.0.tgz",
+      "integrity": "sha512-PVq0diOxO+Zyq/zlMCz2Pfu6mVLHgiT1GpW702OwVlnej+NhS6ZQegYi3OFEDW8d7GxouyR5e8R+t53SMciOeg==",
       "requires": {
         "execa": "^1.0.0",
-        "is-png": "^1.0.0",
-        "is-stream": "^1.1.0",
-        "ow": "^0.8.0",
+        "is-png": "^2.0.0",
+        "is-stream": "^2.0.0",
+        "ow": "^0.13.2",
         "pngquant-bin": "^5.0.0"
       },
       "dependencies": {
@@ -2805,6 +2805,13 @@
             "p-finally": "^1.0.0",
             "signal-exit": "^3.0.0",
             "strip-eof": "^1.0.0"
+          },
+          "dependencies": {
+            "is-stream": {
+              "version": "1.1.0",
+              "resolved": "https://registry.npmjs.org/is-stream/-/is-stream-1.1.0.tgz",
+              "integrity": "sha1-EtSj3U5o4Lec6428hBc66A2RykQ="
+            }
           }
         },
         "get-stream": {
@@ -2814,6 +2821,11 @@
           "requires": {
             "pump": "^3.0.0"
           }
+        },
+        "is-stream": {
+          "version": "2.0.0",
+          "resolved": "https://registry.npmjs.org/is-stream/-/is-stream-2.0.0.tgz",
+          "integrity": "sha512-XCoy+WlUr7d1+Z8GgSuXmpuUFC9fOhRXglJMx+dwLKTkL44Cjd4W1Z5P+BQZpr+cR93aGP4S/s7Ftw6Nd/kiEw=="
         }
       }
     },
@@ -3045,9 +3057,9 @@
       }
     },
     "is-png": {
-      "version": "1.1.0",
-      "resolved": "https://registry.npmjs.org/is-png/-/is-png-1.1.0.tgz",
-      "integrity": "sha1-1XSxK/J1wDUEVVcLDltXqwYgd84="
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/is-png/-/is-png-2.0.0.tgz",
+      "integrity": "sha512-4KPGizaVGj2LK7xwJIz8o5B2ubu1D/vcQsgOGFEDlpcvgZHto4gBnyd0ig7Ws+67ixmwKoNmu0hYnpo6AaKb5g=="
     },
     "is-regex": {
       "version": "1.0.4",
@@ -4353,9 +4365,12 @@
       }
     },
     "ow": {
-      "version": "0.8.0",
-      "resolved": "https://registry.npmjs.org/ow/-/ow-0.8.0.tgz",
-      "integrity": "sha512-hYgYZNcRfIZ2JppSTqh6mxdU1zkUXsGlwy4eBsRG91R6CiZk7cB+AfHl+SVKBdynQvAnNHNfu0ZrtJN1jj7Mow=="
+      "version": "0.13.2",
+      "resolved": "https://registry.npmjs.org/ow/-/ow-0.13.2.tgz",
+      "integrity": "sha512-9wvr+q+ZTDRvXDjL6eDOdFe5WUl/wa5sntf9kAolxqSpkBqaIObwLgFCGXSJASFw+YciXnOVtDWpxXa9cqV94A==",
+      "requires": {
+        "type-fest": "^0.5.1"
+      }
     },
     "p-cancelable": {
       "version": "0.3.0",
@@ -5717,6 +5732,11 @@
       "resolved": "https://registry.npmjs.org/tweetnacl/-/tweetnacl-0.14.5.tgz",
       "integrity": "sha1-WuaBd/GS1EViadEIr6k/+HQ/T2Q="
     },
+    "type-fest": {
+      "version": "0.5.2",
+      "resolved": "https://registry.npmjs.org/type-fest/-/type-fest-0.5.2.tgz",
+      "integrity": "sha512-DWkS49EQKVX//Tbupb9TFa19c7+MK1XmzkrZUR8TAktmE/DizXoaoJV6TZ/tSIPXipqNiRI6CyAe7x69Jb6RSw=="
+    },
     "uglify-js": {
       "version": "3.4.9",
       "resolved": "https://registry.npmjs.org/uglify-js/-/uglify-js-3.4.9.tgz",
diff --git a/package.json b/package.json
index 68f2855..d1251b6 100644
--- a/package.json
+++ b/package.json
@@ -26,7 +26,7 @@
     "imagemin-gifsicle": "6.0.1",
     "imagemin-jimp": "github:jaeh/imagemin-jimp",
     "imagemin-mozjpeg": "8.0.0",
-    "imagemin-pngquant": "7.0.0",
+    "imagemin-pngquant": "8.0.0",
     "imagemin-svgo": "7.0.0",
     "jimp": "0.6.4",
     "node-zopfli-es": "1.0.3",