diff --git a/package-lock.json b/package-lock.json
index 659999b..80d0d27 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -21,7 +21,7 @@
         "http-server": "^14.1.1",
         "prettier": "3.6.2",
         "sass-embedded": "^1.86.3",
-        "tailwindcss": "^4.1.3",
+        "tailwindcss": "^4.1.11",
         "textlint": "^15.2.0",
         "textlint-filter-rule-comments": "^1.2.2",
         "textlint-rule-apostrophe": "^3.0.0",
diff --git a/package.json b/package.json
index 0a91695..ccb19a1 100644
--- a/package.json
+++ b/package.json
@@ -34,7 +34,7 @@
     "http-server": "^14.1.1",
     "prettier": "3.6.2",
     "sass-embedded": "^1.86.3",
-    "tailwindcss": "^4.1.3",
+    "tailwindcss": "^4.1.11",
     "textlint": "^15.2.0",
     "textlint-filter-rule-comments": "^1.2.2",
     "textlint-rule-apostrophe": "^3.0.0",