diff --git a/package-lock.json b/package-lock.json
index 2313096cd..692171340 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -3225,45 +3225,43 @@
       "dev": true
     },
     "autoprefixer": {
-      "version": "9.8.6",
-      "resolved": "https://registry.npmjs.org/autoprefixer/-/autoprefixer-9.8.6.tgz",
-      "integrity": "sha512-XrvP4VVHdRBCdX1S3WXVD8+RyG9qeb1D5Sn1DeLiG2xfSpzellk5k54xbUERJ3M5DggQxes39UGOTP8CFrEGbg==",
+      "version": "10.2.6",
+      "resolved": "https://registry.npmjs.org/autoprefixer/-/autoprefixer-10.2.6.tgz",
+      "integrity": "sha512-8lChSmdU6dCNMCQopIf4Pe5kipkAGj/fvTMslCsih0uHpOrXOPUEVOmYMMqmw3cekQkSD7EhIeuYl5y0BLdKqg==",
       "dev": true,
       "requires": {
-        "browserslist": "^4.12.0",
-        "caniuse-lite": "^1.0.30001109",
-        "colorette": "^1.2.1",
+        "browserslist": "^4.16.6",
+        "caniuse-lite": "^1.0.30001230",
+        "colorette": "^1.2.2",
+        "fraction.js": "^4.1.1",
         "normalize-range": "^0.1.2",
-        "num2fraction": "^1.2.2",
-        "postcss": "^7.0.32",
         "postcss-value-parser": "^4.1.0"
       },
       "dependencies": {
-        "postcss": {
-          "version": "7.0.36",
-          "resolved": "https://registry.npmjs.org/postcss/-/postcss-7.0.36.tgz",
-          "integrity": "sha512-BebJSIUMwJHRH0HAQoxN4u1CN86glsrwsW0q7T+/m44eXOUAxSNdHRkNZPYz5vVUbg17hFgOQDE7fZk7li3pZw==",
+        "browserslist": {
+          "version": "4.16.6",
+          "resolved": "https://registry.npmjs.org/browserslist/-/browserslist-4.16.6.tgz",
+          "integrity": "sha512-Wspk/PqO+4W9qp5iUTJsa1B/QrYn1keNCcEP5OvP7WBwT4KaDly0uONYmC6Xa3Z5IqnUgS0KcgLYu1l74x0ZXQ==",
           "dev": true,
           "requires": {
-            "chalk": "^2.4.2",
-            "source-map": "^0.6.1",
-            "supports-color": "^6.1.0"
+            "caniuse-lite": "^1.0.30001219",
+            "colorette": "^1.2.2",
+            "electron-to-chromium": "^1.3.723",
+            "escalade": "^3.1.1",
+            "node-releases": "^1.1.71"
           }
         },
-        "source-map": {
-          "version": "0.6.1",
-          "resolved": "https://registry.npmjs.org/source-map/-/source-map-0.6.1.tgz",
-          "integrity": "sha512-UjgapumWlbMhkBgzT7Ykc5YXUT46F0iKu8SGXq0bcwP5dz/h0Plj6enJqjz1Zbq2l5WaqYnrVbwWOWMyF3F47g==",
+        "caniuse-lite": {
+          "version": "1.0.30001237",
+          "resolved": "https://registry.npmjs.org/caniuse-lite/-/caniuse-lite-1.0.30001237.tgz",
+          "integrity": "sha512-pDHgRndit6p1NR2GhzMbQ6CkRrp4VKuSsqbcLeOQppYPKOYkKT/6ZvZDvKJUqcmtyWIAHuZq3SVS2vc1egCZzw==",
           "dev": true
         },
-        "supports-color": {
-          "version": "6.1.0",
-          "resolved": "https://registry.npmjs.org/supports-color/-/supports-color-6.1.0.tgz",
-          "integrity": "sha512-qe1jfm1Mg7Nq/NSh6XE24gPXROEVsWHxC1LIx//XNlD9iw7YZQGjZNjYN7xGaEG6iKdA8EtNFW6R0gjnVXp+wQ==",
-          "dev": true,
-          "requires": {
-            "has-flag": "^3.0.0"
-          }
+        "electron-to-chromium": {
+          "version": "1.3.752",
+          "resolved": "https://registry.npmjs.org/electron-to-chromium/-/electron-to-chromium-1.3.752.tgz",
+          "integrity": "sha512-2Tg+7jSl3oPxgsBsWKh5H83QazTkmWG/cnNwJplmyZc7KcN61+I10oUgaXSVk/NwfvN3BdkKDR4FYuRBQQ2v0A==",
+          "dev": true
         }
       }
     },
@@ -6253,6 +6251,12 @@
       "integrity": "sha1-mMI9qxF1ZXuMBXPozszZGw/xjIQ=",
       "dev": true
     },
+    "fraction.js": {
+      "version": "4.1.1",
+      "resolved": "https://registry.npmjs.org/fraction.js/-/fraction.js-4.1.1.tgz",
+      "integrity": "sha512-MHOhvvxHTfRFpF1geTK9czMIZ6xclsEor2wkIGYYq+PxcQqT7vStJqjhe6S1TenZrMZzo+wlqOufBDVepUEgPg==",
+      "dev": true
+    },
     "fragment-cache": {
       "version": "0.2.1",
       "resolved": "https://registry.npmjs.org/fragment-cache/-/fragment-cache-0.2.1.tgz",
@@ -10805,6 +10809,21 @@
         "postcss-selector-not": "^4.0.0"
       },
       "dependencies": {
+        "autoprefixer": {
+          "version": "9.8.6",
+          "resolved": "https://registry.npmjs.org/autoprefixer/-/autoprefixer-9.8.6.tgz",
+          "integrity": "sha512-XrvP4VVHdRBCdX1S3WXVD8+RyG9qeb1D5Sn1DeLiG2xfSpzellk5k54xbUERJ3M5DggQxes39UGOTP8CFrEGbg==",
+          "dev": true,
+          "requires": {
+            "browserslist": "^4.12.0",
+            "caniuse-lite": "^1.0.30001109",
+            "colorette": "^1.2.1",
+            "normalize-range": "^0.1.2",
+            "num2fraction": "^1.2.2",
+            "postcss": "^7.0.32",
+            "postcss-value-parser": "^4.1.0"
+          }
+        },
         "postcss": {
           "version": "7.0.36",
           "resolved": "https://registry.npmjs.org/postcss/-/postcss-7.0.36.tgz",
@@ -13031,6 +13050,21 @@
           "integrity": "sha512-HGyxoOTYUyCM6stUe6EJgnd4EoewAI7zMdfqO+kGjnlZmBDz/cR5pf8r/cR4Wq60sL/p0IkcjUEEPwS3GFrIyw==",
           "dev": true
         },
+        "autoprefixer": {
+          "version": "9.8.6",
+          "resolved": "https://registry.npmjs.org/autoprefixer/-/autoprefixer-9.8.6.tgz",
+          "integrity": "sha512-XrvP4VVHdRBCdX1S3WXVD8+RyG9qeb1D5Sn1DeLiG2xfSpzellk5k54xbUERJ3M5DggQxes39UGOTP8CFrEGbg==",
+          "dev": true,
+          "requires": {
+            "browserslist": "^4.12.0",
+            "caniuse-lite": "^1.0.30001109",
+            "colorette": "^1.2.1",
+            "normalize-range": "^0.1.2",
+            "num2fraction": "^1.2.2",
+            "postcss": "^7.0.32",
+            "postcss-value-parser": "^4.1.0"
+          }
+        },
         "balanced-match": {
           "version": "2.0.0",
           "resolved": "https://registry.npmjs.org/balanced-match/-/balanced-match-2.0.0.tgz",
@@ -13904,6 +13938,29 @@
             "table": "^5.0.0"
           },
           "dependencies": {
+            "autoprefixer": {
+              "version": "9.8.6",
+              "resolved": "https://registry.npmjs.org/autoprefixer/-/autoprefixer-9.8.6.tgz",
+              "integrity": "sha512-XrvP4VVHdRBCdX1S3WXVD8+RyG9qeb1D5Sn1DeLiG2xfSpzellk5k54xbUERJ3M5DggQxes39UGOTP8CFrEGbg==",
+              "dev": true,
+              "requires": {
+                "browserslist": "^4.12.0",
+                "caniuse-lite": "^1.0.30001109",
+                "colorette": "^1.2.1",
+                "normalize-range": "^0.1.2",
+                "num2fraction": "^1.2.2",
+                "postcss": "^7.0.32",
+                "postcss-value-parser": "^4.1.0"
+              },
+              "dependencies": {
+                "postcss-value-parser": {
+                  "version": "4.1.0",
+                  "resolved": "https://registry.npmjs.org/postcss-value-parser/-/postcss-value-parser-4.1.0.tgz",
+                  "integrity": "sha512-97DXOFbQJhk71ne5/Mt6cOu6yxsSfM0QGQyl0L25Gca4yGWEGJaig7l7gbCX623VqTBNGLRLaVUCnNkcedlRSQ==",
+                  "dev": true
+                }
+              }
+            },
             "postcss": {
               "version": "7.0.36",
               "resolved": "https://registry.npmjs.org/postcss/-/postcss-7.0.36.tgz",
@@ -14796,6 +14853,50 @@
                 "color-convert": "^1.9.0"
               }
             },
+            "autoprefixer": {
+              "version": "9.8.6",
+              "resolved": "https://registry.npmjs.org/autoprefixer/-/autoprefixer-9.8.6.tgz",
+              "integrity": "sha512-XrvP4VVHdRBCdX1S3WXVD8+RyG9qeb1D5Sn1DeLiG2xfSpzellk5k54xbUERJ3M5DggQxes39UGOTP8CFrEGbg==",
+              "dev": true,
+              "requires": {
+                "browserslist": "^4.12.0",
+                "caniuse-lite": "^1.0.30001109",
+                "colorette": "^1.2.1",
+                "normalize-range": "^0.1.2",
+                "num2fraction": "^1.2.2",
+                "postcss": "^7.0.32",
+                "postcss-value-parser": "^4.1.0"
+              },
+              "dependencies": {
+                "postcss-value-parser": {
+                  "version": "4.1.0",
+                  "resolved": "https://registry.npmjs.org/postcss-value-parser/-/postcss-value-parser-4.1.0.tgz",
+                  "integrity": "sha512-97DXOFbQJhk71ne5/Mt6cOu6yxsSfM0QGQyl0L25Gca4yGWEGJaig7l7gbCX623VqTBNGLRLaVUCnNkcedlRSQ==",
+                  "dev": true
+                }
+              }
+            },
+            "browserslist": {
+              "version": "4.16.6",
+              "resolved": "https://registry.npmjs.org/browserslist/-/browserslist-4.16.6.tgz",
+              "integrity": "sha512-Wspk/PqO+4W9qp5iUTJsa1B/QrYn1keNCcEP5OvP7WBwT4KaDly0uONYmC6Xa3Z5IqnUgS0KcgLYu1l74x0ZXQ==",
+              "dev": true,
+              "requires": {
+                "caniuse-lite": "^1.0.30001219",
+                "colorette": "^1.2.2",
+                "electron-to-chromium": "^1.3.723",
+                "escalade": "^3.1.1",
+                "node-releases": "^1.1.71"
+              },
+              "dependencies": {
+                "caniuse-lite": {
+                  "version": "1.0.30001237",
+                  "resolved": "https://registry.npmjs.org/caniuse-lite/-/caniuse-lite-1.0.30001237.tgz",
+                  "integrity": "sha512-pDHgRndit6p1NR2GhzMbQ6CkRrp4VKuSsqbcLeOQppYPKOYkKT/6ZvZDvKJUqcmtyWIAHuZq3SVS2vc1egCZzw==",
+                  "dev": true
+                }
+              }
+            },
             "chalk": {
               "version": "2.4.2",
               "resolved": "https://registry.npmjs.org/chalk/-/chalk-2.4.2.tgz",
@@ -14807,6 +14908,12 @@
                 "supports-color": "^5.3.0"
               }
             },
+            "electron-to-chromium": {
+              "version": "1.3.752",
+              "resolved": "https://registry.npmjs.org/electron-to-chromium/-/electron-to-chromium-1.3.752.tgz",
+              "integrity": "sha512-2Tg+7jSl3oPxgsBsWKh5H83QazTkmWG/cnNwJplmyZc7KcN61+I10oUgaXSVk/NwfvN3BdkKDR4FYuRBQQ2v0A==",
+              "dev": true
+            },
             "has-flag": {
               "version": "3.0.0",
               "resolved": "https://registry.npmjs.org/has-flag/-/has-flag-3.0.0.tgz",
diff --git a/package.json b/package.json
index d7e5eae19..fa4a4f17a 100644
--- a/package.json
+++ b/package.json
@@ -14,7 +14,7 @@
     "@babel/preset-env": "^7.14.5",
     "@babel/preset-react": "^7.14.5",
     "@uupaa/dynamic-import-polyfill": "^1.0.2",
-    "autoprefixer": "^9.8.6",
+    "autoprefixer": "^10.2.6",
     "babel-loader": "^8.2.2",
     "babel-plugin-dynamic-import-polyfill": "^1.0.0",
     "clean-webpack-plugin": "^3.0.0",