diff --git a/package-lock.json b/package-lock.json
index 3fe6061e..232e85b9 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1502,20 +1502,20 @@
       }
     },
     "@vuepress/plugin-pwa": {
-      "version": "1.8.2",
-      "resolved": "https://registry.npmjs.org/@vuepress/plugin-pwa/-/plugin-pwa-1.8.2.tgz",
-      "integrity": "sha512-6dQXMI+oqTQtHK22Ba+crhzP5yyAf+V1qVfapgPb8JxLXUasOhr+083VRz5LMYqDzu6CAXM+P8cUgSSBNjifXw==",
+      "version": "1.9.1",
+      "resolved": "https://registry.npmjs.org/@vuepress/plugin-pwa/-/plugin-pwa-1.9.1.tgz",
+      "integrity": "sha512-iG92P5vreR3q1/eIFrgmdYSLGDEZg7KF2JzxpHCOvVd5espBmyDiuYrNXxAFR56QIDc2aX5h0Gp3SPES+oSugA==",
       "dev": true,
       "requires": {
-        "@vuepress/shared-utils": "1.8.2",
+        "@vuepress/shared-utils": "1.9.1",
         "register-service-worker": "^1.7.0",
         "workbox-build": "^4.3.1"
       },
       "dependencies": {
         "@vuepress/shared-utils": {
-          "version": "1.8.2",
-          "resolved": "https://registry.npmjs.org/@vuepress/shared-utils/-/shared-utils-1.8.2.tgz",
-          "integrity": "sha512-6kGubc7iBDWruEBUU7yR+sQ++SOhMuvKWvWeTZJKRZedthycdzYz7QVpua0FaZSAJm5/dIt8ymU4WQvxTtZgTQ==",
+          "version": "1.9.1",
+          "resolved": "https://registry.npmjs.org/@vuepress/shared-utils/-/shared-utils-1.9.1.tgz",
+          "integrity": "sha512-sYXiNweRGn0LcJEPG/LG1/b02depZMgtXkZINxvhRnOwdgCfCl0b9Q+xsdIv+xAKsiraXBARJKaEV5EN4RKFUg==",
           "dev": true,
           "requires": {
             "chalk": "^2.3.2",
@@ -3236,9 +3236,9 @@
       "dev": true
     },
     "common-tags": {
-      "version": "1.8.0",
-      "resolved": "https://registry.npmjs.org/common-tags/-/common-tags-1.8.0.tgz",
-      "integrity": "sha512-6P6g0uetGpW/sdyUy/iQQCbFF0kWVMSIVSyYz7Zgjcgh8mgw8PQzDNZeyZ5DQ2gM7LBoZPHmnjz8rUthkBG5tw==",
+      "version": "1.8.2",
+      "resolved": "https://registry.npmjs.org/common-tags/-/common-tags-1.8.2.tgz",
+      "integrity": "sha512-gk/Z852D2Wtb//0I+kRFNKKE9dIIVirjoqPoA1wJU+XePVXZfGeBpk45+A1rKO4Q43prqWBNY/MiIeRLbPWUaA==",
       "dev": true
     },
     "commondir": {
diff --git a/package.json b/package.json
index 596f2077..ae5148d6 100644
--- a/package.json
+++ b/package.json
@@ -20,7 +20,7 @@
   "devDependencies": {
     "vuepress": "^1.8.2",
     "vuepress-plugin-container": "^2.1.4",
-    "@vuepress/plugin-pwa": "^1.5.3",
+    "@vuepress/plugin-pwa": "^1.9.1",
     "vuepress-plugin-medium-zoom": "^1.1.8"
   }
 }