diff --git a/package.json b/package.json
index 5dd07b8..e88dcf1 100644
--- a/package.json
+++ b/package.json
@@ -19,7 +19,7 @@
   },
   "license": "Apache-2.0",
   "devDependencies": {
-    "@vuepress/plugin-back-to-top": "1.8.0",
+    "@vuepress/plugin-back-to-top": "1.8.1",
     "@vuepress/plugin-medium-zoom": "1.8.0",
     "jsdom": "16.4.0",
     "markdown-it-attrs": "4.0.0",
diff --git a/yarn.lock b/yarn.lock
index 6d53180..92f8dd6 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1113,10 +1113,10 @@
   dependencies:
     lodash.debounce "^4.0.8"
 
-"@vuepress/plugin-back-to-top@1.8.0":
-  version "1.8.0"
-  resolved "https://registry.yarnpkg.com/@vuepress/plugin-back-to-top/-/plugin-back-to-top-1.8.0.tgz#eb7062e33cd65f4582e012702f7f69ccf0f55ae7"
-  integrity sha512-myyC4ZLT887IAaKcBBles8OHYeAfYMFSvC0CqjCBOyoBExNt6E+Xg3ksYksxrew/mNCTiwxXJvu+0o2a/8WIYA==
+"@vuepress/plugin-back-to-top@1.8.1":
+  version "1.8.1"
+  resolved "https://registry.yarnpkg.com/@vuepress/plugin-back-to-top/-/plugin-back-to-top-1.8.1.tgz#2dcf12340041742e89e646cf7fdbf74b9bc93104"
+  integrity sha512-2V6SjITnm1tHmGh70pC32McwZlhTBfiFc16Bc2auNLIVREUR4PA1EUN9NZAUbtsRC23myzPLT/v2fcwt2efZVA==
   dependencies:
     lodash.debounce "^4.0.8"