diff --git a/basic-ts-v5/package.json b/basic-ts-v5/package.json
index 182f1491..150f32ba 100644
--- a/basic-ts-v5/package.json
+++ b/basic-ts-v5/package.json
@@ -12,7 +12,7 @@
     "react-bootstrap": "^2.6.0",
     "react-dom": "^17.0.2",
     "react-scripts": "4.0.3",
-    "typescript": "4.9.3"
+    "typescript": "5.8.3"
   },
   "scripts": {
     "start": "react-scripts start",
diff --git a/basic-ts-v5/yarn.lock b/basic-ts-v5/yarn.lock
index 52905fc0..1e0d35f6 100644
--- a/basic-ts-v5/yarn.lock
+++ b/basic-ts-v5/yarn.lock
@@ -10733,10 +10733,10 @@ typedarray@^0.0.6:
   resolved "https://registry.yarnpkg.com/typedarray/-/typedarray-0.0.6.tgz#867ac74e3864187b1d3d47d996a78ec5c8830777"
   integrity sha1-hnrHTjhkGHsdPUfZlqeOxciDB3c=
 
-typescript@4.9.3:
-  version "4.9.3"
-  resolved "https://registry.yarnpkg.com/typescript/-/typescript-4.9.3.tgz#3aea307c1746b8c384435d8ac36b8a2e580d85db"
-  integrity sha512-CIfGzTelbKNEnLpLdGFgdyKhG23CKdKgQPOBc+OUNrkJ2vr+KSzsSV5kq5iWhEQbok+quxgGzrAtGWCyU7tHnA==
+typescript@5.8.3:
+  version "5.8.3"
+  resolved "https://registry.yarnpkg.com/typescript/-/typescript-5.8.3.tgz#92f8a3e5e3cf497356f4178c34cd65a7f5e8440e"
+  integrity sha512-p1diW6TqL9L07nNxvRMM7hMMw4c5XOo/1ibL4aAIGmSAt9slTE1Xgw5KWuof2uTOvCg9BY7ZRi+GaF+7sfgPeQ==
 
 uncontrollable@^7.2.1:
   version "7.2.1"
diff --git a/basic-ts/package.json b/basic-ts/package.json
index aceee0f9..c6bd0181 100644
--- a/basic-ts/package.json
+++ b/basic-ts/package.json
@@ -12,7 +12,7 @@
     "react-bootstrap": "^1.6.6",
     "react-dom": "^17.0.2",
     "react-scripts": "4.0.3",
-    "typescript": "4.9.3"
+    "typescript": "5.8.3"
   },
   "scripts": {
     "start": "react-scripts start",
diff --git a/basic-ts/yarn.lock b/basic-ts/yarn.lock
index f08fb77d..46972551 100644
--- a/basic-ts/yarn.lock
+++ b/basic-ts/yarn.lock
@@ -10749,10 +10749,10 @@ typedarray@^0.0.6:
   resolved "https://registry.yarnpkg.com/typedarray/-/typedarray-0.0.6.tgz#867ac74e3864187b1d3d47d996a78ec5c8830777"
   integrity sha1-hnrHTjhkGHsdPUfZlqeOxciDB3c=
 
-typescript@4.9.3:
-  version "4.9.3"
-  resolved "https://registry.yarnpkg.com/typescript/-/typescript-4.9.3.tgz#3aea307c1746b8c384435d8ac36b8a2e580d85db"
-  integrity sha512-CIfGzTelbKNEnLpLdGFgdyKhG23CKdKgQPOBc+OUNrkJ2vr+KSzsSV5kq5iWhEQbok+quxgGzrAtGWCyU7tHnA==
+typescript@5.8.3:
+  version "5.8.3"
+  resolved "https://registry.yarnpkg.com/typescript/-/typescript-5.8.3.tgz#92f8a3e5e3cf497356f4178c34cd65a7f5e8440e"
+  integrity sha512-p1diW6TqL9L07nNxvRMM7hMMw4c5XOo/1ibL4aAIGmSAt9slTE1Xgw5KWuof2uTOvCg9BY7ZRi+GaF+7sfgPeQ==
 
 uncontrollable@^7.2.1:
   version "7.2.1"
diff --git a/parcel-ts-v5/package.json b/parcel-ts-v5/package.json
index ea11e572..dcc3f871 100644
--- a/parcel-ts-v5/package.json
+++ b/parcel-ts-v5/package.json
@@ -15,6 +15,6 @@
   },
   "devDependencies": {
     "parcel-bundler": "^1.12.5",
-    "typescript": "^4.9.3"
+    "typescript": "^5.8.3"
   }
 }
diff --git a/parcel-ts-v5/yarn.lock b/parcel-ts-v5/yarn.lock
index 6a1e9a7f..be15ef2a 100644
--- a/parcel-ts-v5/yarn.lock
+++ b/parcel-ts-v5/yarn.lock
@@ -5105,10 +5105,10 @@ typedarray@^0.0.6:
   resolved "https://registry.yarnpkg.com/typedarray/-/typedarray-0.0.6.tgz#867ac74e3864187b1d3d47d996a78ec5c8830777"
   integrity sha1-hnrHTjhkGHsdPUfZlqeOxciDB3c=
 
-typescript@^4.9.3:
-  version "4.9.3"
-  resolved "https://registry.yarnpkg.com/typescript/-/typescript-4.9.3.tgz#3aea307c1746b8c384435d8ac36b8a2e580d85db"
-  integrity sha512-CIfGzTelbKNEnLpLdGFgdyKhG23CKdKgQPOBc+OUNrkJ2vr+KSzsSV5kq5iWhEQbok+quxgGzrAtGWCyU7tHnA==
+typescript@^5.8.3:
+  version "5.8.3"
+  resolved "https://registry.yarnpkg.com/typescript/-/typescript-5.8.3.tgz#92f8a3e5e3cf497356f4178c34cd65a7f5e8440e"
+  integrity sha512-p1diW6TqL9L07nNxvRMM7hMMw4c5XOo/1ibL4aAIGmSAt9slTE1Xgw5KWuof2uTOvCg9BY7ZRi+GaF+7sfgPeQ==
 
 uncontrollable@^7.2.1:
   version "7.2.1"
diff --git a/ts-react-router-v5/package.json b/ts-react-router-v5/package.json
index 13df4290..da0545d3 100644
--- a/ts-react-router-v5/package.json
+++ b/ts-react-router-v5/package.json
@@ -17,7 +17,7 @@
     "react-dom": "^18.2.0",
     "react-router-dom": "^5.3.4",
     "react-scripts": "5.0.1",
-    "typescript": "^4.9.3",
+    "typescript": "^5.8.3",
     "web-vitals": "^2.1.4"
   },
   "scripts": {
diff --git a/ts-react-router-v5/yarn.lock b/ts-react-router-v5/yarn.lock
index 3767ddf2..2abb1a92 100644
--- a/ts-react-router-v5/yarn.lock
+++ b/ts-react-router-v5/yarn.lock
@@ -8464,10 +8464,10 @@ typedarray-to-buffer@^3.1.5:
   dependencies:
     is-typedarray "^1.0.0"
 
-typescript@^4.9.3:
-  version "4.9.3"
-  resolved "https://registry.yarnpkg.com/typescript/-/typescript-4.9.3.tgz#3aea307c1746b8c384435d8ac36b8a2e580d85db"
-  integrity sha512-CIfGzTelbKNEnLpLdGFgdyKhG23CKdKgQPOBc+OUNrkJ2vr+KSzsSV5kq5iWhEQbok+quxgGzrAtGWCyU7tHnA==
+typescript@^5.8.3:
+  version "5.8.3"
+  resolved "https://registry.yarnpkg.com/typescript/-/typescript-5.8.3.tgz#92f8a3e5e3cf497356f4178c34cd65a7f5e8440e"
+  integrity sha512-p1diW6TqL9L07nNxvRMM7hMMw4c5XOo/1ibL4aAIGmSAt9slTE1Xgw5KWuof2uTOvCg9BY7ZRi+GaF+7sfgPeQ==
 
 unbox-primitive@^1.0.2:
   version "1.0.2"
diff --git a/ts-react-router-v6/package.json b/ts-react-router-v6/package.json
index a098fb13..eb52c645 100644
--- a/ts-react-router-v6/package.json
+++ b/ts-react-router-v6/package.json
@@ -16,7 +16,7 @@
     "react-dom": "^18.2.0",
     "react-router-dom": "^6.4.3",
     "react-scripts": "5.0.1",
-    "typescript": "^4.9.3",
+    "typescript": "^5.8.3",
     "web-vitals": "^2.1.4"
   },
   "scripts": {
diff --git a/ts-react-router-v6/yarn.lock b/ts-react-router-v6/yarn.lock
index e35d025c..998deed8 100644
--- a/ts-react-router-v6/yarn.lock
+++ b/ts-react-router-v6/yarn.lock
@@ -8388,10 +8388,10 @@ typedarray-to-buffer@^3.1.5:
   dependencies:
     is-typedarray "^1.0.0"
 
-typescript@^4.9.3:
-  version "4.9.3"
-  resolved "https://registry.yarnpkg.com/typescript/-/typescript-4.9.3.tgz#3aea307c1746b8c384435d8ac36b8a2e580d85db"
-  integrity sha512-CIfGzTelbKNEnLpLdGFgdyKhG23CKdKgQPOBc+OUNrkJ2vr+KSzsSV5kq5iWhEQbok+quxgGzrAtGWCyU7tHnA==
+typescript@^5.8.3:
+  version "5.8.3"
+  resolved "https://registry.yarnpkg.com/typescript/-/typescript-5.8.3.tgz#92f8a3e5e3cf497356f4178c34cd65a7f5e8440e"
+  integrity sha512-p1diW6TqL9L07nNxvRMM7hMMw4c5XOo/1ibL4aAIGmSAt9slTE1Xgw5KWuof2uTOvCg9BY7ZRi+GaF+7sfgPeQ==
 
 unbox-primitive@^1.0.2:
   version "1.0.2"