diff --git a/docs/package-lock.json b/docs/package-lock.json
index 2924f58a83..2d5c509f01 100644
--- a/docs/package-lock.json
+++ b/docs/package-lock.json
@@ -9,7 +9,7 @@
       "version": "0.0.1",
       "license": "Apache-2.0",
       "devDependencies": {
-        "autoprefixer": "^10.5.4",
+        "autoprefixer": "^10.5.5",
         "postcss": "^8.5.26",
         "postcss-cli": "^11.0.1"
       }
@@ -54,9 +54,9 @@
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-      "resolved": "https://registry.npmjs.org/autoprefixer/-/autoprefixer-10.5.4.tgz",
-      "integrity": "sha512-MaU0U/za7N3r6brxD4YB/l4NSrFzLPlANv6wEuQVaIPlD3L4W9rFcQPbL/EilY9BHhHvhfcz3gInDLrEtWT4EA==",
+      "version": "10.5.5",
+      "resolved": "https://registry.npmjs.org/autoprefixer/-/autoprefixer-10.5.5.tgz",
+      "integrity": "sha512-uiRYvQYe/nNSzBJ7OUnd2/TZVsAdob3blml44teEpee9Cc1f4rGZFewO+JT3Wo8mgFOSzNqes4FHZn/Qz8WOuw==",
       "dev": true,
       "funding": [
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@@ -74,8 +74,8 @@
       ],
       "license": "MIT",
       "dependencies": {
-        "browserslist": "^4.28.6",
-        "caniuse-lite": "^1.0.30001806",
+        "browserslist": "^4.28.9",
+        "caniuse-lite": "^1.0.30001810",
         "fraction.js": "^5.3.4",
         "picocolors": "^1.1.1",
         "postcss-value-parser": "^4.2.0"
@@ -91,9 +91,9 @@
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-      "resolved": "https://registry.npmjs.org/baseline-browser-mapping/-/baseline-browser-mapping-2.11.10.tgz",
-      "integrity": "sha512-35JEvJ5/KKlbCHjMCsONI2w6HE88STjVdHk+C7d8LtcFxUjZR1KeLP9izofn2qs0KUxX5r4z73bwH/rd+JHacw==",
+      "version": "2.11.21",
+      "resolved": "https://registry.npmjs.org/baseline-browser-mapping/-/baseline-browser-mapping-2.11.21.tgz",
+      "integrity": "sha512-uh8vpY/1/YyFkunIDFH/12p7/7VdPKA1hejMVEbdkEaWnUz0Hesvx5EbiU6XxjyHZIOju+ZMbQJkRh+es3/spQ==",
       "dev": true,
       "license": "Apache-2.0",
       "bin": {
@@ -137,9 +137,9 @@
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     "node_modules/browserslist": {
-      "version": "4.28.7",
-      "resolved": "https://registry.npmjs.org/browserslist/-/browserslist-4.28.7.tgz",
-      "integrity": "sha512-JxV13hNrFxqjOc8alRbq9dK1MM79NEXYpma2B2J4wAtpWS5zIEIKqWPGCl7N4o7Uc7B7itylh7SuDujATRyyTw==",
+      "version": "4.28.9",
+      "resolved": "https://registry.npmjs.org/browserslist/-/browserslist-4.28.9.tgz",
+      "integrity": "sha512-EWazOblFYUvlGZcfGhPUPmYh3nikUxBVb+y9MJun5f3hBi812X+8MSQTujLBtgK3cf51fJWbWfOjyeO954d+Eg==",
       "dev": true,
       "funding": [
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@@ -157,11 +157,11 @@
       ],
       "license": "MIT",
       "dependencies": {
-        "baseline-browser-mapping": "^2.10.44",
-        "caniuse-lite": "^1.0.30001806",
-        "electron-to-chromium": "^1.5.393",
-        "node-releases": "^2.0.51",
-        "update-browserslist-db": "^1.2.3"
+        "baseline-browser-mapping": "^2.11.20",
+        "caniuse-lite": "^1.0.30001810",
+        "electron-to-chromium": "^1.5.420",
+        "node-releases": "^2.0.54",
+        "update-browserslist-db": "^1.3.2"
       },
       "bin": {
         "browserslist": "cli.js"
@@ -171,9 +171,9 @@
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     "node_modules/caniuse-lite": {
-      "version": "1.0.30001806",
-      "resolved": "https://registry.npmjs.org/caniuse-lite/-/caniuse-lite-1.0.30001806.tgz",
-      "integrity": "sha512-72Cuvd95zbSYPKq6Fhg8eDJRlzgWDf7/mtoZv6Qe/DYNCEBdNxoA3+rZAU2ZhGCpZlns3EssFavaZomckT5Uuw==",
+      "version": "1.0.30001810",
+      "resolved": "https://registry.npmjs.org/caniuse-lite/-/caniuse-lite-1.0.30001810.tgz",
+      "integrity": "sha512-TITQPUkaz+aVk5GL6NhOdwk1aEaNTSDPsGFWrTuhKGtjTF70jL/Oht2W4c6rXUe5fu7Ie19VIahAXHIIiWWNeg==",
       "dev": true,
       "funding": [
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@@ -258,9 +258,9 @@
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     "node_modules/electron-to-chromium": {
-      "version": "1.5.399",
-      "resolved": "https://registry.npmjs.org/electron-to-chromium/-/electron-to-chromium-1.5.399.tgz",
-      "integrity": "sha512-lEcqhErbHjXRvd41rnWLpzbyU/IXfIYo7QwaFWmxGeLiLyY2TBCdHnWY88vB+p3ubnihRypDm66panXl7TylLA==",
+      "version": "1.5.422",
+      "resolved": "https://registry.npmjs.org/electron-to-chromium/-/electron-to-chromium-1.5.422.tgz",
+      "integrity": "sha512-UvA/32XqrLDdZSn7Jllo1AYNcWji/G0d5M0GTViE7KoGBiMunw3a34Sb2KO4ZZyrSEhqsxFoVhWWJshdyfKqJA==",
       "dev": true,
       "license": "ISC"
     },
@@ -488,9 +488,9 @@
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     "node_modules/node-releases": {
-      "version": "2.0.51",
-      "resolved": "https://registry.npmjs.org/node-releases/-/node-releases-2.0.51.tgz",
-      "integrity": "sha512-wRNIrw4DmVLKQlbgOMdkMx27Wrpzes2hh5Jtbi2bjPd+4wJstWIqP5A+lscnqbm0xxmT5Bpg8Lec5ItEBwx6BQ==",
+      "version": "2.0.54",
+      "resolved": "https://registry.npmjs.org/node-releases/-/node-releases-2.0.54.tgz",
+      "integrity": "sha512-YHs7BmmcsdAI5Ozuf8JZo6PT0mv2GIWC9vMfvUC3dp65M8hn7Ux8CPL+2oBI7juNuj9d0ndhTcznq2ODBps9cQ==",
       "dev": true,
       "license": "MIT",
       "engines": {
@@ -825,9 +825,9 @@
       }
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     "node_modules/update-browserslist-db": {
-      "version": "1.2.3",
-      "resolved": "https://registry.npmjs.org/update-browserslist-db/-/update-browserslist-db-1.2.3.tgz",
-      "integrity": "sha512-Js0m9cx+qOgDxo0eMiFGEueWztz+d4+M3rGlmKPT+T4IS/jP4ylw3Nwpu6cpTTP8R1MAC1kF4VbdLt3ARf209w==",
+      "version": "1.3.2",
+      "resolved": "https://registry.npmjs.org/update-browserslist-db/-/update-browserslist-db-1.3.2.tgz",
+      "integrity": "sha512-UQ+MSxlhRm1bzjhU+DcuXfjFO1FzNtqhK5+9Yvlp90ItDLk5vT932A0rFu619nf7RVS+Y/VeaUW1jaRDqZ8VJw==",
       "dev": true,
       "funding": [
         {
diff --git a/docs/package.json b/docs/package.json
index 605855f4b7..0b63e8ba25 100644
--- a/docs/package.json
+++ b/docs/package.json
@@ -17,7 +17,7 @@
   },
   "homepage": "https://github.com/pipe-cd/pipecd#readme",
   "devDependencies": {
-    "autoprefixer": "^10.5.4",
+    "autoprefixer": "^10.5.5",
     "postcss": "^8.5.26",
     "postcss-cli": "^11.0.1"
   }