diff --git a/src/templates/react/js/css/package.json b/src/templates/react/js/css/package.json
index 0bff910..d372ed5 100644
--- a/src/templates/react/js/css/package.json
+++ b/src/templates/react/js/css/package.json
@@ -25,7 +25,7 @@
     "eslint-plugin-react-refresh": "^0.4.14",
     "globals": "^15.11.0",
     "postcss": "^8.4.47",
-    "tailwindcss": "^3.4.14",
+    "tailwindcss": "^4.0.0",
     "vite": "^6.0.0"
   }
 }
diff --git a/src/templates/react/js/scss/package.json b/src/templates/react/js/scss/package.json
index 680a20f..01bbfb5 100644
--- a/src/templates/react/js/scss/package.json
+++ b/src/templates/react/js/scss/package.json
@@ -26,7 +26,7 @@
     "globals": "^15.11.0",
     "postcss": "^8.4.47",
     "sass-embedded": "^1.80.6",
-    "tailwindcss": "^3.4.14",
+    "tailwindcss": "^4.0.0",
     "sass": "^1.80.6",
     "vite": "^6.0.0"
   }
diff --git a/src/templates/react/js_swc/css/package.json b/src/templates/react/js_swc/css/package.json
index 4c1a5ae..4bc7de3 100644
--- a/src/templates/react/js_swc/css/package.json
+++ b/src/templates/react/js_swc/css/package.json
@@ -25,7 +25,7 @@
     "eslint-plugin-react-refresh": "^0.4.14",
     "globals": "^15.11.0",
     "postcss": "^8.4.47",
-    "tailwindcss": "^3.4.14",
+    "tailwindcss": "^4.0.0",
     "vite": "^6.0.0"
   }
 }
diff --git a/src/templates/react/js_swc/scss/package.json b/src/templates/react/js_swc/scss/package.json
index d1aa408..1790b3a 100644
--- a/src/templates/react/js_swc/scss/package.json
+++ b/src/templates/react/js_swc/scss/package.json
@@ -26,7 +26,7 @@
     "globals": "^15.11.0",
     "postcss": "^8.4.47",
     "sass-embedded": "^1.80.6",
-    "tailwindcss": "^3.4.14",
+    "tailwindcss": "^4.0.0",
     "sass": "^1.80.6",
     "vite": "^6.0.0"
   }
diff --git a/src/templates/react/remix/css/package.json b/src/templates/react/remix/css/package.json
index c64bc9e..89e129d 100644
--- a/src/templates/react/remix/css/package.json
+++ b/src/templates/react/remix/css/package.json
@@ -32,7 +32,7 @@
     "eslint-plugin-react": "^7.37.2",
     "eslint-plugin-react-hooks": "^5.0.0",
     "postcss": "^8.4.47",
-    "tailwindcss": "^3.4.14",
+    "tailwindcss": "^4.0.0",
     "typescript": "^5.6.3",
     "vite": "^6.0.0",
     "vite-tsconfig-paths": "^5.0.1"
diff --git a/src/templates/react/remix/scss/package.json b/src/templates/react/remix/scss/package.json
index 93579c9..4d13299 100644
--- a/src/templates/react/remix/scss/package.json
+++ b/src/templates/react/remix/scss/package.json
@@ -33,7 +33,7 @@
     "eslint-plugin-react-hooks": "^5.0.0",
     "postcss": "^8.4.47",
     "sass-embedded": "^1.80.6",
-    "tailwindcss": "^3.4.14",
+    "tailwindcss": "^4.0.0",
     "typescript": "^5.6.3",
     "sass": "^1.80.6",
     "vite": "^6.0.0",
diff --git a/src/templates/react/ts/css/package.json b/src/templates/react/ts/css/package.json
index 6cf5566..0a5ab60 100644
--- a/src/templates/react/ts/css/package.json
+++ b/src/templates/react/ts/css/package.json
@@ -24,7 +24,7 @@
     "eslint-plugin-react-refresh": "^0.4.14",
     "globals": "^15.11.0",
     "postcss": "^8.4.47",
-    "tailwindcss": "^3.4.14",
+    "tailwindcss": "^4.0.0",
     "typescript": "~5.7.0",
     "typescript-eslint": "^8.12.2",
     "vite": "^6.0.0"
diff --git a/src/templates/react/ts/scss/package.json b/src/templates/react/ts/scss/package.json
index 04cb2b0..d0228ec 100644
--- a/src/templates/react/ts/scss/package.json
+++ b/src/templates/react/ts/scss/package.json
@@ -25,7 +25,7 @@
     "globals": "^15.11.0",
     "postcss": "^8.4.47",
     "sass-embedded": "^1.80.6",
-    "tailwindcss": "^3.4.14",
+    "tailwindcss": "^4.0.0",
     "typescript": "~5.7.0",
     "typescript-eslint": "^8.12.2",
     "sass": "^1.80.6",
diff --git a/src/templates/react/ts_swc/css/package.json b/src/templates/react/ts_swc/css/package.json
index 4500c52..5eacec0 100644
--- a/src/templates/react/ts_swc/css/package.json
+++ b/src/templates/react/ts_swc/css/package.json
@@ -24,7 +24,7 @@
     "eslint-plugin-react-refresh": "^0.4.14",
     "globals": "^15.12.0",
     "postcss": "^8.4.47",
-    "tailwindcss": "^3.4.14",
+    "tailwindcss": "^4.0.0",
     "typescript": "~5.7.0",
     "typescript-eslint": "^8.12.2",
     "vite": "^6.0.0"
diff --git a/src/templates/react/ts_swc/scss/package.json b/src/templates/react/ts_swc/scss/package.json
index 85ef5fe..24582fc 100644
--- a/src/templates/react/ts_swc/scss/package.json
+++ b/src/templates/react/ts_swc/scss/package.json
@@ -24,7 +24,7 @@
     "eslint-plugin-react-refresh": "^0.4.14",
     "globals": "^15.12.0",
     "postcss": "^8.4.47",
-    "tailwindcss": "^3.4.14",
+    "tailwindcss": "^4.0.0",
     "typescript": "~5.7.0",
     "typescript-eslint": "^8.12.2",
     "sass": "^1.80.6",
diff --git a/src/templates/vanilla/js/css/package.json b/src/templates/vanilla/js/css/package.json
index 821cd67..c7ac6af 100644
--- a/src/templates/vanilla/js/css/package.json
+++ b/src/templates/vanilla/js/css/package.json
@@ -11,7 +11,7 @@
   "devDependencies": {
     "autoprefixer": "^10.4.20",
     "postcss": "^8.4.47",
-    "tailwindcss": "^3.4.14",
+    "tailwindcss": "^4.0.0",
     "vite": "^6.0.0"
   }
 }
diff --git a/src/templates/vanilla/js/scss/package.json b/src/templates/vanilla/js/scss/package.json
index 3f13b92..d4be0f7 100644
--- a/src/templates/vanilla/js/scss/package.json
+++ b/src/templates/vanilla/js/scss/package.json
@@ -11,7 +11,7 @@
   "devDependencies": {
     "autoprefixer": "^10.4.20",
     "postcss": "^8.4.47",
-    "tailwindcss": "^3.4.14",
+    "tailwindcss": "^4.0.0",
     "sass": "^1.80.6",
     "vite": "^6.0.0"
   }
diff --git a/src/templates/vanilla/ts/css/package.json b/src/templates/vanilla/ts/css/package.json
index 8166661..f9061f1 100644
--- a/src/templates/vanilla/ts/css/package.json
+++ b/src/templates/vanilla/ts/css/package.json
@@ -11,7 +11,7 @@
   "devDependencies": {
     "autoprefixer": "^10.4.20",
     "postcss": "^8.4.47",
-    "tailwindcss": "^3.4.14",
+    "tailwindcss": "^4.0.0",
     "typescript": "~5.7.0",
     "vite": "^6.0.0"
   }
diff --git a/src/templates/vanilla/ts/scss/package.json b/src/templates/vanilla/ts/scss/package.json
index 238689d..ac6d37c 100644
--- a/src/templates/vanilla/ts/scss/package.json
+++ b/src/templates/vanilla/ts/scss/package.json
@@ -12,7 +12,7 @@
     "autoprefixer": "^10.4.20",
     "postcss": "^8.4.47",
     "sass": "^1.80.6",
-    "tailwindcss": "^3.4.14",
+    "tailwindcss": "^4.0.0",
     "typescript": "~5.7.0",
     "vite": "^6.0.0"
   }
diff --git a/src/templates/vue/js/css/package.json b/src/templates/vue/js/css/package.json
index 8750fea..77d882b 100644
--- a/src/templates/vue/js/css/package.json
+++ b/src/templates/vue/js/css/package.json
@@ -15,7 +15,7 @@
     "@vitejs/plugin-vue": "^5.1.4",
     "autoprefixer": "^10.4.20",
     "postcss": "^8.4.47",
-    "tailwindcss": "^3.4.14",
+    "tailwindcss": "^4.0.0",
     "vite": "^6.0.0"
   }
 }
diff --git a/src/templates/vue/js/scss/package.json b/src/templates/vue/js/scss/package.json
index e4d8a21..30f7e08 100644
--- a/src/templates/vue/js/scss/package.json
+++ b/src/templates/vue/js/scss/package.json
@@ -15,7 +15,7 @@
     "@vitejs/plugin-vue": "^5.1.4",
     "autoprefixer": "^10.4.20",
     "postcss": "^8.4.47",
-    "tailwindcss": "^3.4.14",
+    "tailwindcss": "^4.0.0",
     "sass": "^1.80.6",
     "sass-embedded": "^1.80.6",
     "vite": "^6.0.0"
diff --git a/src/templates/vue/nuxt/css/package.json b/src/templates/vue/nuxt/css/package.json
index d5aa8e6..5d6d1d9 100644
--- a/src/templates/vue/nuxt/css/package.json
+++ b/src/templates/vue/nuxt/css/package.json
@@ -17,6 +17,6 @@
   "devDependencies": {
     "autoprefixer": "^10.4.20",
     "postcss": "^8.4.47",
-    "tailwindcss": "^3.4.14"
+    "tailwindcss": "^4.0.0"
   }
 }
diff --git a/src/templates/vue/nuxt/scss/package.json b/src/templates/vue/nuxt/scss/package.json
index c08da8d..fbeafed 100644
--- a/src/templates/vue/nuxt/scss/package.json
+++ b/src/templates/vue/nuxt/scss/package.json
@@ -17,7 +17,7 @@
   "devDependencies": {
     "autoprefixer": "^10.4.20",
     "postcss": "^8.4.47",
-    "tailwindcss": "^3.4.14",
+    "tailwindcss": "^4.0.0",
     "sass": "^1.80.6",
     "sass-embedded": "^1.80.6"
   }
diff --git a/src/templates/vue/ts/css/package.json b/src/templates/vue/ts/css/package.json
index 2aae918..60592a9 100644
--- a/src/templates/vue/ts/css/package.json
+++ b/src/templates/vue/ts/css/package.json
@@ -15,7 +15,7 @@
     "@vitejs/plugin-vue": "^5.1.4",
     "autoprefixer": "^10.4.20",
     "postcss": "^8.4.47",
-    "tailwindcss": "^3.4.14",
+    "tailwindcss": "^4.0.0",
     "typescript": "~5.7.0",
     "vite": "^6.0.0",
     "vue-tsc": "^2.1.10"
diff --git a/src/templates/vue/ts/scss/package.json b/src/templates/vue/ts/scss/package.json
index 0380461..dba98d8 100644
--- a/src/templates/vue/ts/scss/package.json
+++ b/src/templates/vue/ts/scss/package.json
@@ -17,7 +17,7 @@
     "postcss": "^8.4.47",
     "sass": "^1.80.6",
     "sass-embedded": "^1.80.6",
-    "tailwindcss": "^3.4.14",
+    "tailwindcss": "^4.0.0",
     "typescript": "~5.7.0",
     "vite": "^6.0.0",
     "vue-tsc": "^2.1.10"