diff --git a/apps/mcp-server/package.json b/apps/mcp-server/package.json
index e7cab5d..24db40e 100644
--- a/apps/mcp-server/package.json
+++ b/apps/mcp-server/package.json
@@ -59,7 +59,7 @@
     "smol-toml": "^1.3.1",
     "tsup": "^8.5.1",
     "tsx": "^4.19.2",
-    "typescript": "^5.7.2",
+    "typescript": "^6.0.3",
     "vitest": "^3.0.4",
     "write-file-atomic": "^6.0.0",
     "yaml": "^2.7.0",
diff --git a/package.json b/package.json
index 3d8d2b4..058df96 100644
--- a/package.json
+++ b/package.json
@@ -14,7 +14,7 @@
   "devDependencies": {
     "@biomejs/biome": "^1.9.4",
     "turbo": "^2.8.21",
-    "typescript": "^5.9.3",
+    "typescript": "^6.0.3",
     "@types/node": "^22.19.15",
     "rimraf": "^6.1.3"
   },
diff --git a/packages/config/package.json b/packages/config/package.json
index 386e8de..47e0ae8 100644
--- a/packages/config/package.json
+++ b/packages/config/package.json
@@ -22,7 +22,7 @@
   },
   "devDependencies": {
     "@toolcairn/tsconfig": "workspace:*",
-    "typescript": "^5.7.2",
+    "typescript": "^6.0.3",
     "rimraf": "^6.0.1"
   }
 }
diff --git a/packages/errors/package.json b/packages/errors/package.json
index bc78825..26fb5a2 100644
--- a/packages/errors/package.json
+++ b/packages/errors/package.json
@@ -25,6 +25,6 @@
     "@toolcairn/tsconfig": "workspace:*",
     "@types/node": "^22.10.7",
     "rimraf": "^6.0.1",
-    "typescript": "^5.7.2"
+    "typescript": "^6.0.3"
   }
 }
diff --git a/packages/remote/package.json b/packages/remote/package.json
index dc0da8f..e76e3b8 100644
--- a/packages/remote/package.json
+++ b/packages/remote/package.json
@@ -27,6 +27,6 @@
     "@toolcairn/tsconfig": "workspace:*",
     "@types/node": "^22.10.7",
     "rimraf": "^6.0.1",
-    "typescript": "^5.7.2"
+    "typescript": "^6.0.3"
   }
 }
diff --git a/packages/tools-local/package.json b/packages/tools-local/package.json
index 1cd9a30..0eaeac3 100644
--- a/packages/tools-local/package.json
+++ b/packages/tools-local/package.json
@@ -39,7 +39,7 @@
     "@types/proper-lockfile": "^4.1.4",
     "@types/write-file-atomic": "^4.0.3",
     "rimraf": "^6.0.1",
-    "typescript": "^5.7.2",
+    "typescript": "^6.0.3",
     "vitest": "^3.0.4"
   }
 }
diff --git a/packages/types/package.json b/packages/types/package.json
index a48fc98..8ffdd08 100644
--- a/packages/types/package.json
+++ b/packages/types/package.json
@@ -22,6 +22,6 @@
     "@toolcairn/tsconfig": "workspace:*",
     "@types/node": "^22.10.7",
     "rimraf": "^6.0.1",
-    "typescript": "^5.7.2"
+    "typescript": "^6.0.3"
   }
 }
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 2227e7a..abe5251 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -21,8 +21,8 @@ importers:
         specifier: ^2.8.21
         version: 2.9.4
       typescript:
-        specifier: ^5.9.3
-        version: 5.9.3
+        specifier: ^6.0.3
+        version: 6.0.3
 
   apps/mcp-server:
     devDependencies:
@@ -73,13 +73,13 @@ importers:
         version: 1.6.1
       tsup:
         specifier: ^8.5.1
-        version: 8.5.1(postcss@8.5.8)(tsx@4.21.0)(typescript@5.9.3)(yaml@2.8.3)
+        version: 8.5.1(postcss@8.5.8)(tsx@4.21.0)(typescript@6.0.3)(yaml@2.8.3)
       tsx:
         specifier: ^4.19.2
         version: 4.21.0
       typescript:
-        specifier: ^5.7.2
-        version: 5.9.3
+        specifier: ^6.0.3
+        version: 6.0.3
       vitest:
         specifier: ^3.0.4
         version: 3.2.4(@types/node@22.19.17)(tsx@4.21.0)(yaml@2.8.3)
@@ -106,8 +106,8 @@ importers:
         specifier: ^6.0.1
         version: 6.1.3
       typescript:
-        specifier: ^5.7.2
-        version: 5.9.3
+        specifier: ^6.0.3
+        version: 6.0.3
 
   packages/errors:
     dependencies:
@@ -128,8 +128,8 @@ importers:
         specifier: ^6.0.1
         version: 6.1.3
       typescript:
-        specifier: ^5.7.2
-        version: 5.9.3
+        specifier: ^6.0.3
+        version: 6.0.3
 
   packages/remote:
     dependencies:
@@ -153,8 +153,8 @@ importers:
         specifier: ^6.0.1
         version: 6.1.3
       typescript:
-        specifier: ^5.7.2
-        version: 5.9.3
+        specifier: ^6.0.3
+        version: 6.0.3
 
   packages/tools-local:
     dependencies:
@@ -208,8 +208,8 @@ importers:
         specifier: ^6.0.1
         version: 6.1.3
       typescript:
-        specifier: ^5.7.2
-        version: 5.9.3
+        specifier: ^6.0.3
+        version: 6.0.3
       vitest:
         specifier: ^3.0.4
         version: 3.2.4(@types/node@22.19.17)(tsx@4.21.0)(yaml@2.8.3)
@@ -228,8 +228,8 @@ importers:
         specifier: ^6.0.1
         version: 6.1.3
       typescript:
-        specifier: ^5.7.2
-        version: 5.9.3
+        specifier: ^6.0.3
+        version: 6.0.3
 
 packages:
 
@@ -1382,8 +1382,8 @@ packages:
     resolution: {integrity: sha512-OZs6gsjF4vMp32qrCbiVSkrFmXtG/AZhY3t0iAMrMBiAZyV9oALtXO8hsrHbMXF9x6L3grlFuwW2oAz7cav+Gw==}
     engines: {node: '>= 0.6'}
 
-  typescript@5.9.3:
-    resolution: {integrity: sha512-jl1vZzPDinLr9eUt3J/t7V6FgNEw9QjvBPdysz9KfQDD41fQrC2Y4vKQdiaUpFT4bXlb1RHhLpp8wtm6M5TgSw==}
+  typescript@6.0.3:
+    resolution: {integrity: sha512-y2TvuxSZPDyQakkFRPZHKFm+KKVqIisdg9/CZwm9ftvKXLP8NRWj38/ODjNbr43SsoXqNuAisEf1GdCxqWcdBw==}
     engines: {node: '>=14.17'}
     hasBin: true
 
@@ -2498,7 +2498,7 @@ snapshots:
 
   ts-interface-checker@0.1.13: {}
 
-  tsup@8.5.1(postcss@8.5.8)(tsx@4.21.0)(typescript@5.9.3)(yaml@2.8.3):
+  tsup@8.5.1(postcss@8.5.8)(tsx@4.21.0)(typescript@6.0.3)(yaml@2.8.3):
     dependencies:
       bundle-require: 5.1.0(esbuild@0.27.7)
       cac: 6.7.14
@@ -2519,7 +2519,7 @@ snapshots:
       tree-kill: 1.2.2
     optionalDependencies:
       postcss: 8.5.8
-      typescript: 5.9.3
+      typescript: 6.0.3
     transitivePeerDependencies:
       - jiti
       - supports-color
@@ -2548,7 +2548,7 @@ snapshots:
       media-typer: 1.1.0
       mime-types: 3.0.2
 
-  typescript@5.9.3: {}
+  typescript@6.0.3: {}
 
   ufo@1.6.3: {}