diff --git a/package-lock.json b/package-lock.json
index 0345ed2..4e64e93 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -20,7 +20,7 @@
       "devDependencies": {
         "supabase": "^2.51.0",
         "tsx": "^4.20.6",
-        "typescript": "5.6.2"
+        "typescript": "5.9.3"
       }
     },
     "node_modules/@alloc/quick-lru": {
@@ -10280,9 +10280,9 @@
       }
     },
     "node_modules/typescript": {
-      "version": "5.6.2",
-      "resolved": "https://registry.npmjs.org/typescript/-/typescript-5.6.2.tgz",
-      "integrity": "sha512-NW8ByodCSNCwZeghjN3o+JX5OFH0Ojg6sadjEKY4huZ52TqbJTJnDo5+Tw98lSy63NZvi4n+ez5m2u5d4PkZyw==",
+      "version": "5.9.3",
+      "resolved": "https://registry.npmjs.org/typescript/-/typescript-5.9.3.tgz",
+      "integrity": "sha512-jl1vZzPDinLr9eUt3J/t7V6FgNEw9QjvBPdysz9KfQDD41fQrC2Y4vKQdiaUpFT4bXlb1RHhLpp8wtm6M5TgSw==",
       "license": "Apache-2.0",
       "bin": {
         "tsc": "bin/tsc",
@@ -10858,7 +10858,7 @@
       },
       "devDependencies": {
         "@types/node": "^24.8.1",
-        "typescript": "^5.6.2"
+        "typescript": "5.9.3"
       }
     },
     "web": {
@@ -10899,7 +10899,7 @@
         "simplemde": "^1.11.2",
         "tailwindcss": "3.4.13",
         "three": "0.160.0",
-        "typescript": "5.6.2",
+        "typescript": "5.9.3",
         "zod": "^4.1.12"
       },
       "devDependencies": {
@@ -10921,7 +10921,7 @@
         "@types/bull": "^3.15.9",
         "@types/node": "^24.8.1",
         "tsx": "^4.20.6",
-        "typescript": "^5.6.2"
+        "typescript": "5.9.3"
       }
     }
   }
diff --git a/package.json b/package.json
index aad5c7d..0cc7000 100644
--- a/package.json
+++ b/package.json
@@ -43,7 +43,7 @@
   "devDependencies": {
     "supabase": "^2.51.0",
     "tsx": "^4.20.6",
-    "typescript": "5.6.2"
+    "typescript": "5.9.3"
   },
   "dependencies": {
     "@types/d3": "^7.4.3",
diff --git a/packages/shared/package.json b/packages/shared/package.json
index 40c525d..50402b7 100644
--- a/packages/shared/package.json
+++ b/packages/shared/package.json
@@ -29,6 +29,6 @@
   },
   "devDependencies": {
     "@types/node": "^24.8.1",
-    "typescript": "^5.6.2"
+    "typescript": "^5.9.3"
   }
 }
diff --git a/web/package.json b/web/package.json
index fbe19e5..eedd52e 100644
--- a/web/package.json
+++ b/web/package.json
@@ -44,7 +44,7 @@
     "simplemde": "^1.11.2",
     "tailwindcss": "3.4.13",
     "three": "0.160.0",
-    "typescript": "5.6.2",
+    "typescript": "5.9.3",
     "zod": "^4.1.12"
   },
   "devDependencies": {
diff --git a/worker/package.json b/worker/package.json
index 3df7d17..77828dd 100644
--- a/worker/package.json
+++ b/worker/package.json
@@ -19,6 +19,6 @@
     "@types/bull": "^3.15.9",
     "@types/node": "^24.8.1",
     "tsx": "^4.20.6",
-    "typescript": "^5.6.2"
+    "typescript": "^5.9.3"
   }
 }