diff --git a/package-lock.json b/package-lock.json
index 1a63109..4cfd415 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -83,40 +83,17 @@
       "dev": true
     },
     "autoprefixer": {
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-      "resolved": "https://registry.npmjs.org/autoprefixer/-/autoprefixer-9.8.6.tgz",
-      "integrity": "sha512-XrvP4VVHdRBCdX1S3WXVD8+RyG9qeb1D5Sn1DeLiG2xfSpzellk5k54xbUERJ3M5DggQxes39UGOTP8CFrEGbg==",
+      "version": "10.4.0",
+      "resolved": "https://registry.npmjs.org/autoprefixer/-/autoprefixer-10.4.0.tgz",
+      "integrity": "sha512-7FdJ1ONtwzV1G43GDD0kpVMn/qbiNqyOPMFTX5nRffI+7vgWoFEc6DcXOxHJxrWNDXrZh18eDsZjvZGUljSRGA==",
       "dev": true,
       "requires": {
-        "browserslist": "^4.12.0",
-        "caniuse-lite": "^1.0.30001109",
-        "colorette": "^1.2.1",
+        "browserslist": "^4.17.5",
+        "caniuse-lite": "^1.0.30001272",
+        "fraction.js": "^4.1.1",
         "normalize-range": "^0.1.2",
-        "num2fraction": "^1.2.2",
-        "postcss": "^7.0.32",
+        "picocolors": "^1.0.0",
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-          "resolved": "https://registry.npmjs.org/postcss/-/postcss-7.0.32.tgz",
-          "integrity": "sha512-03eXong5NLnNCD05xscnGKGDZ98CyzoqPSMjOe6SuoQY7Z2hIj0Ld1g/O/UQRuOle2aRtiIRDg9tDcTGAkLfKw==",
-          "dev": true,
-          "requires": {
-            "chalk": "^2.4.2",
-            "source-map": "^0.6.1",
-            "supports-color": "^6.1.0"
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-          "resolved": "https://registry.npmjs.org/supports-color/-/supports-color-6.1.0.tgz",
-          "integrity": "sha512-qe1jfm1Mg7Nq/NSh6XE24gPXROEVsWHxC1LIx//XNlD9iw7YZQGjZNjYN7xGaEG6iKdA8EtNFW6R0gjnVXp+wQ==",
-          "dev": true,
-          "requires": {
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-          }
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@@ -135,15 +112,16 @@
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-      "resolved": "https://registry.npmjs.org/browserslist/-/browserslist-4.14.0.tgz",
-      "integrity": "sha512-pUsXKAF2lVwhmtpeA3LJrZ76jXuusrNyhduuQs7CDFf9foT4Y38aQOserd2lMe5DSSrjf3fx34oHwryuvxAUgQ==",
+      "version": "4.19.1",
+      "resolved": "https://registry.npmjs.org/browserslist/-/browserslist-4.19.1.tgz",
+      "integrity": "sha512-u2tbbG5PdKRTUoctO3NBD8FQ5HdPh1ZXPHzp1rwaa5jTc+RV9/+RlWiAIKmjRPQF+xbGM9Kklj5bZQFa2s/38A==",
       "dev": true,
       "requires": {
-        "caniuse-lite": "^1.0.30001111",
-        "electron-to-chromium": "^1.3.523",
-        "escalade": "^3.0.2",
-        "node-releases": "^1.1.60"
+        "caniuse-lite": "^1.0.30001286",
+        "electron-to-chromium": "^1.4.17",
+        "escalade": "^3.1.1",
+        "node-releases": "^2.0.1",
+        "picocolors": "^1.0.0"
       }
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     "caller-callsite": {
@@ -177,9 +155,9 @@
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-      "version": "1.0.30001115",
-      "resolved": "https://registry.npmjs.org/caniuse-lite/-/caniuse-lite-1.0.30001115.tgz",
-      "integrity": "sha512-NZrG0439ePYna44lJX8evHX2L7Z3/z3qjVLnHgbBb/duNEnGo348u+BQS5o4HTWcrb++100dHFrU36IesIrC1Q==",
+      "version": "1.0.30001287",
+      "resolved": "https://registry.npmjs.org/caniuse-lite/-/caniuse-lite-1.0.30001287.tgz",
+      "integrity": "sha512-4udbs9bc0hfNrcje++AxBuc6PfLNHwh3PO9kbwnfCQWyqtlzg3py0YgFu8jyRTTo85VAz4U+VLxSlID09vNtWA==",
       "dev": true
     },
     "chalk": {
@@ -235,12 +213,6 @@
       "integrity": "sha1-p9BVi9icQveV3UIyj3QIMcpTvCU=",
       "dev": true
     },
-    "colorette": {
-      "version": "1.2.1",
-      "resolved": "https://registry.npmjs.org/colorette/-/colorette-1.2.1.tgz",
-      "integrity": "sha512-puCDz0CzydiSYOrnXpz/PKd69zRrribezjtE9yd4zvytoRc8+RY/KJPvtPFKZS3E3wP6neGyMe0vOTlHO5L3Pw==",
-      "dev": true
-    },
     "cosmiconfig": {
       "version": "5.2.1",
       "resolved": "https://registry.npmjs.org/cosmiconfig/-/cosmiconfig-5.2.1.tgz",
@@ -275,9 +247,9 @@
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     "electron-to-chromium": {
-      "version": "1.3.534",
-      "resolved": "https://registry.npmjs.org/electron-to-chromium/-/electron-to-chromium-1.3.534.tgz",
-      "integrity": "sha512-7x2S3yUrspNHQOoPk+Eo+iHViSiJiEGPI6BpmLy1eT2KRNGCkBt/NUYqjfXLd1DpDCQp7n3+LfA1RkbG+LqTZQ==",
+      "version": "1.4.21",
+      "resolved": "https://registry.npmjs.org/electron-to-chromium/-/electron-to-chromium-1.4.21.tgz",
+      "integrity": "sha512-T04U2ciApGbm+dESFEBbewi2Xt0Dgyww8M4n4sOt9lnmFuYbaHEDWCROkx4jvAZDUWWry9YOdnAs+7468q80Qg==",
       "dev": true
     },
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@@ -296,9 +268,9 @@
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     "escalade": {
-      "version": "3.0.2",
-      "resolved": "https://registry.npmjs.org/escalade/-/escalade-3.0.2.tgz",
-      "integrity": "sha512-gPYAU37hYCUhW5euPeR+Y74F7BL+IBsV93j5cvGriSaD1aG6MGsqsV1yamRdrWrb2j3aiZvb0X+UBOWpx3JWtQ==",
+      "version": "3.1.1",
+      "resolved": "https://registry.npmjs.org/escalade/-/escalade-3.1.1.tgz",
+      "integrity": "sha512-k0er2gUkLf8O0zKJiAhmkTnJlTvINGv7ygDNPbeIsX/TJjGJZHuh9B2UxbsaEkmlEo9MfhrSzmhIlhRlI2GXnw==",
       "dev": true
     },
     "escape-string-regexp": {
@@ -355,6 +327,12 @@
         "path-exists": "^4.0.0"
       }
     },
+    "fraction.js": {
+      "version": "4.1.2",
+      "resolved": "https://registry.npmjs.org/fraction.js/-/fraction.js-4.1.2.tgz",
+      "integrity": "sha512-o2RiJQ6DZaR/5+Si0qJUIy637QMRudSi9kU/FFzx9EZazrIdnBgpU+3sEWCxAVhH2RtxW2Oz+T4p2o8uOPVcgA==",
+      "dev": true
+    },
     "fs-extra": {
       "version": "9.0.1",
       "resolved": "https://registry.npmjs.org/fs-extra/-/fs-extra-9.0.1.tgz",
@@ -570,9 +548,9 @@
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     "node-releases": {
-      "version": "1.1.60",
-      "resolved": "https://registry.npmjs.org/node-releases/-/node-releases-1.1.60.tgz",
-      "integrity": "sha512-gsO4vjEdQaTusZAEebUWp2a5d7dF5DYoIpDG7WySnk7BuZDW+GPpHXoXXuYawRBr/9t5q54tirPz79kFIWg4dA==",
+      "version": "2.0.1",
+      "resolved": "https://registry.npmjs.org/node-releases/-/node-releases-2.0.1.tgz",
+      "integrity": "sha512-CqyzN6z7Q6aMeF/ktcMVTzhAHCEpf8SOarwpzpf8pNBY2k5/oM34UHldUwp8VKI7uxct2HxSRdJjBaZeESzcxA==",
       "dev": true
     },
     "normalize-path": {
@@ -587,12 +565,6 @@
       "integrity": "sha1-LRDAa9/TEuqXd2laTShDlFa3WUI=",
       "dev": true
     },
-    "num2fraction": {
-      "version": "1.2.2",
-      "resolved": "https://registry.npmjs.org/num2fraction/-/num2fraction-1.2.2.tgz",
-      "integrity": "sha1-b2gragJ6Tp3fpFZM0lidHU5mnt4=",
-      "dev": true
-    },
     "p-limit": {
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       "resolved": "https://registry.npmjs.org/p-limit/-/p-limit-2.3.0.tgz",
@@ -639,6 +611,12 @@
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       "dev": true
     },
+    "picocolors": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/picocolors/-/picocolors-1.0.0.tgz",
+      "integrity": "sha512-1fygroTLlHu66zi26VoTDv8yRgm0Fccecssto+MhsZ0D/DGW2sm8E8AjW7NU5VVTRt5GxbeZ5qBuJr+HyLYkjQ==",
+      "dev": true
+    },
     "picomatch": {
       "version": "2.2.2",
       "resolved": "https://registry.npmjs.org/picomatch/-/picomatch-2.2.2.tgz",
@@ -768,9 +746,9 @@
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     "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==",
+      "version": "4.2.0",
+      "resolved": "https://registry.npmjs.org/postcss-value-parser/-/postcss-value-parser-4.2.0.tgz",
+      "integrity": "sha512-1NNCs6uurfkVbeXG4S8JFT9t19m45ICnif8zWLd5oPSZ50QnwMfK+H3jv408d4jw/7Bttv5axS5IiHoLaVNHeQ==",
       "dev": true
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diff --git a/package.json b/package.json
index 48affdb..f0eb0e4 100644
--- a/package.json
+++ b/package.json
@@ -18,7 +18,7 @@
   "homepage": "https://github.com/google/docsy-example#readme",
   "dependencies": {},
   "devDependencies": {
-    "autoprefixer": "^9.8.6",
+    "autoprefixer": "^10.4.0",
     "postcss-cli": "^7.1.2"
   }
 }