diff --git a/packages/color-utils/package.json b/packages/color-utils/package.json
index df5f21644..768bf802a 100644
--- a/packages/color-utils/package.json
+++ b/packages/color-utils/package.json
@@ -45,7 +45,7 @@
     "rollup-plugin-replace": "2.2.0",
     "should": "13.2.3",
     "sinon": "22.0.0",
-    "typescript": "5.9.3"
+    "typescript": "6.0.3"
   },
   "dependencies": {
     "@types/color": "4.2.1",
diff --git a/packages/custom-fonts/package.json b/packages/custom-fonts/package.json
index a79bf252e..ec1ffa203 100644
--- a/packages/custom-fonts/package.json
+++ b/packages/custom-fonts/package.json
@@ -44,6 +44,6 @@
     "mocha": "11.7.6",
     "sinon": "22.0.0",
     "ts-node": "10.9.2",
-    "typescript": "5.9.3"
+    "typescript": "6.0.3"
   }
 }
diff --git a/packages/referrer-parser/package.json b/packages/referrer-parser/package.json
index 6b28725fb..66ac998f5 100644
--- a/packages/referrer-parser/package.json
+++ b/packages/referrer-parser/package.json
@@ -55,7 +55,7 @@
     "@vitest/coverage-v8": "4.1.8",
     "should": "13.2.3",
     "sinon": "22.0.0",
-    "typescript": "5.9.3",
+    "typescript": "6.0.3",
     "vite": "8.0.16",
     "vite-plugin-dts": "5.0.2",
     "vitest": "4.1.8"
diff --git a/packages/timezone-data/package.json b/packages/timezone-data/package.json
index d8a7bb2c8..ec3a8830a 100644
--- a/packages/timezone-data/package.json
+++ b/packages/timezone-data/package.json
@@ -48,6 +48,6 @@
     "rollup-plugin-commonjs": "10.1.0",
     "should": "13.2.3",
     "sinon": "22.0.0",
-    "typescript": "5.9.3"
+    "typescript": "6.0.3"
   }
 }
diff --git a/packages/url-utils/package.json b/packages/url-utils/package.json
index e2dfc4b99..94234fb57 100644
--- a/packages/url-utils/package.json
+++ b/packages/url-utils/package.json
@@ -34,7 +34,7 @@
     "rewire": "9.0.1",
     "should": "13.2.3",
     "sinon": "22.0.0",
-    "typescript": "5.9.3"
+    "typescript": "6.0.3"
   },
   "dependencies": {
     "cheerio": "1.2.0",
diff --git a/yarn.lock b/yarn.lock
index 090a0565c..8f2bdb81f 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -11422,6 +11422,11 @@ typescript@5.9.3, "typescript@>=3 < 6":
   resolved "https://registry.yarnpkg.com/typescript/-/typescript-5.9.3.tgz#5b4f59e15310ab17a216f5d6cf53ee476ede670f"
   integrity sha512-jl1vZzPDinLr9eUt3J/t7V6FgNEw9QjvBPdysz9KfQDD41fQrC2Y4vKQdiaUpFT4bXlb1RHhLpp8wtm6M5TgSw==
 
+typescript@6.0.3:
+  version "6.0.3"
+  resolved "https://registry.yarnpkg.com/typescript/-/typescript-6.0.3.tgz#90251dc007916e972786cb94d74d15b185577d21"
+  integrity sha512-y2TvuxSZPDyQakkFRPZHKFm+KKVqIisdg9/CZwm9ftvKXLP8NRWj38/ODjNbr43SsoXqNuAisEf1GdCxqWcdBw==
+
 ufo@^1.6.3:
   version "1.6.4"
   resolved "https://registry.yarnpkg.com/ufo/-/ufo-1.6.4.tgz#7a8fb875fcc6382d2c7d0b3692738b0500a92467"