diff --git a/package-lock.json b/package-lock.json
index 95adfa2..9616e91 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -21,7 +21,7 @@
         "http-server": "^14.1.1",
         "prettier": "3.6.2",
         "sass-embedded": "^1.91.0",
-        "tailwindcss": "^4.1.11",
+        "tailwindcss": "^4.1.13",
         "textlint": "^15.2.2",
         "textlint-filter-rule-comments": "^1.2.2",
         "textlint-rule-apostrophe": "^3.0.0",
@@ -2470,6 +2470,13 @@
         "tailwindcss": "4.1.12"
       }
     },
+    "node_modules/@tailwindcss/node/node_modules/tailwindcss": {
+      "version": "4.1.12",
+      "resolved": "https://registry.npmjs.org/tailwindcss/-/tailwindcss-4.1.12.tgz",
+      "integrity": "sha512-DzFtxOi+7NsFf7DBtI3BJsynR+0Yp6etH+nRPTbpWnS2pZBaSksv/JGctNwSWzbFjp0vxSqknaUylseZqMDGrA==",
+      "dev": true,
+      "license": "MIT"
+    },
     "node_modules/@tailwindcss/oxide": {
       "version": "4.1.12",
       "resolved": "https://registry.npmjs.org/@tailwindcss/oxide/-/oxide-4.1.12.tgz",
@@ -2791,6 +2798,13 @@
         "vite": "^5.2.0 || ^6 || ^7"
       }
     },
+    "node_modules/@tailwindcss/vite/node_modules/tailwindcss": {
+      "version": "4.1.12",
+      "resolved": "https://registry.npmjs.org/tailwindcss/-/tailwindcss-4.1.12.tgz",
+      "integrity": "sha512-DzFtxOi+7NsFf7DBtI3BJsynR+0Yp6etH+nRPTbpWnS2pZBaSksv/JGctNwSWzbFjp0vxSqknaUylseZqMDGrA==",
+      "dev": true,
+      "license": "MIT"
+    },
     "node_modules/@textlint-rule/textlint-rule-no-unmatched-pair": {
       "version": "2.0.4",
       "resolved": "https://registry.npmjs.org/@textlint-rule/textlint-rule-no-unmatched-pair/-/textlint-rule-no-unmatched-pair-2.0.4.tgz",
@@ -15958,9 +15972,9 @@
       }
     },
     "node_modules/tailwindcss": {
-      "version": "4.1.12",
-      "resolved": "https://registry.npmjs.org/tailwindcss/-/tailwindcss-4.1.12.tgz",
-      "integrity": "sha512-DzFtxOi+7NsFf7DBtI3BJsynR+0Yp6etH+nRPTbpWnS2pZBaSksv/JGctNwSWzbFjp0vxSqknaUylseZqMDGrA==",
+      "version": "4.1.13",
+      "resolved": "https://registry.npmjs.org/tailwindcss/-/tailwindcss-4.1.13.tgz",
+      "integrity": "sha512-i+zidfmTqtwquj4hMEwdjshYYgMbOrPzb9a0M3ZgNa0JMoZeFC6bxZvO8yr8ozS6ix2SDz0+mvryPeBs2TFE+w==",
       "dev": true,
       "license": "MIT"
     },
diff --git a/package.json b/package.json
index 466bc35..1cf0772 100644
--- a/package.json
+++ b/package.json
@@ -34,7 +34,7 @@
     "http-server": "^14.1.1",
     "prettier": "3.6.2",
     "sass-embedded": "^1.91.0",
-    "tailwindcss": "^4.1.11",
+    "tailwindcss": "^4.1.13",
     "textlint": "^15.2.2",
     "textlint-filter-rule-comments": "^1.2.2",
     "textlint-rule-apostrophe": "^3.0.0",