diff --git a/package-lock.json b/package-lock.json
index 1d4bd06..233edc9 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -16,7 +16,7 @@
         "@sup39/markdown-it-inline-tag": "1.0.1",
         "@types/encoding-japanese": "^2.0.1",
         "@vuepress/plugin-back-to-top": "1.9.7",
-        "@vuepress/plugin-medium-zoom": "1.9.7",
+        "@vuepress/plugin-medium-zoom": "1.9.8",
         "encoding-japanese": "^2.0.0",
         "jsdom": "21.1.0",
         "pre-commit": "1.2.2",
@@ -2629,15 +2629,26 @@
       }
     },
     "node_modules/@vuepress/plugin-medium-zoom": {
-      "version": "1.9.7",
-      "resolved": "https://registry.npmjs.org/@vuepress/plugin-medium-zoom/-/plugin-medium-zoom-1.9.7.tgz",
-      "integrity": "sha512-P00chXEEoFyQyDWiiSw1mUIdywS6vqM9jolM/3Gv3/TywqemWEm1MKMM7mLsjGiaXJbBQZE+U3/lHmzcaroYLQ==",
+      "version": "1.9.8",
+      "resolved": "https://registry.npmjs.org/@vuepress/plugin-medium-zoom/-/plugin-medium-zoom-1.9.8.tgz",
+      "integrity": "sha512-qs7N8w/48d6t8fYXa/0QUyaGnZAWjZdLfk+5AwBaS7iub2kIFHRI1bs7yBgUmuCo7CFAltMuD46HZJIug6xg0w==",
       "dev": true,
       "dependencies": {
-        "@vuepress/types": "1.9.7",
+        "@vuepress/types": "1.9.8",
         "medium-zoom": "^1.0.4"
       }
     },
+    "node_modules/@vuepress/plugin-medium-zoom/node_modules/@vuepress/types": {
+      "version": "1.9.8",
+      "resolved": "https://registry.npmjs.org/@vuepress/types/-/types-1.9.8.tgz",
+      "integrity": "sha512-ygRFqILi4SQjExxvpVUFXB/h76dN+k8GrDWYhAgmox1zhWEEzsskbqewXGKWE48RW9EJDYGgh8jy+CWvm7ILXg==",
+      "dev": true,
+      "dependencies": {
+        "@types/markdown-it": "^10.0.0",
+        "@types/webpack-dev-server": "^3",
+        "webpack-chain": "^6.0.0"
+      }
+    },
     "node_modules/@vuepress/plugin-nprogress": {
       "version": "1.9.8",
       "resolved": "https://registry.npmjs.org/@vuepress/plugin-nprogress/-/plugin-nprogress-1.9.8.tgz",
@@ -19806,13 +19817,26 @@
       }
     },
     "@vuepress/plugin-medium-zoom": {
-      "version": "1.9.7",
-      "resolved": "https://registry.npmjs.org/@vuepress/plugin-medium-zoom/-/plugin-medium-zoom-1.9.7.tgz",
-      "integrity": "sha512-P00chXEEoFyQyDWiiSw1mUIdywS6vqM9jolM/3Gv3/TywqemWEm1MKMM7mLsjGiaXJbBQZE+U3/lHmzcaroYLQ==",
+      "version": "1.9.8",
+      "resolved": "https://registry.npmjs.org/@vuepress/plugin-medium-zoom/-/plugin-medium-zoom-1.9.8.tgz",
+      "integrity": "sha512-qs7N8w/48d6t8fYXa/0QUyaGnZAWjZdLfk+5AwBaS7iub2kIFHRI1bs7yBgUmuCo7CFAltMuD46HZJIug6xg0w==",
       "dev": true,
       "requires": {
-        "@vuepress/types": "1.9.7",
+        "@vuepress/types": "1.9.8",
         "medium-zoom": "^1.0.4"
+      },
+      "dependencies": {
+        "@vuepress/types": {
+          "version": "1.9.8",
+          "resolved": "https://registry.npmjs.org/@vuepress/types/-/types-1.9.8.tgz",
+          "integrity": "sha512-ygRFqILi4SQjExxvpVUFXB/h76dN+k8GrDWYhAgmox1zhWEEzsskbqewXGKWE48RW9EJDYGgh8jy+CWvm7ILXg==",
+          "dev": true,
+          "requires": {
+            "@types/markdown-it": "^10.0.0",
+            "@types/webpack-dev-server": "^3",
+            "webpack-chain": "^6.0.0"
+          }
+        }
       }
     },
     "@vuepress/plugin-nprogress": {
diff --git a/package.json b/package.json
index da3d5d8..e52c4f7 100644
--- a/package.json
+++ b/package.json
@@ -24,7 +24,7 @@
     "@sup39/markdown-it-inline-tag": "1.0.1",
     "@types/encoding-japanese": "^2.0.1",
     "@vuepress/plugin-back-to-top": "1.9.7",
-    "@vuepress/plugin-medium-zoom": "1.9.7",
+    "@vuepress/plugin-medium-zoom": "1.9.8",
     "encoding-japanese": "^2.0.0",
     "jsdom": "21.1.0",
     "pre-commit": "1.2.2",