diff --git a/package-lock.json b/package-lock.json
index 1dd564e76..05a80970d 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -30,7 +30,7 @@
                 "readable-stream": "^4.5.2",
                 "stream-json": "1.8.0",
                 "string-to-stream": "^3.0.1",
-                "typescript": "4.9.5"
+                "typescript": "5.5.2"
             },
             "bin": {
                 "quicktype": "dist/index.js"
@@ -10143,14 +10143,15 @@
             "license": "MIT"
         },
         "node_modules/typescript": {
-            "version": "4.9.5",
-            "license": "Apache-2.0",
+            "version": "5.5.2",
+            "resolved": "https://registry.npmjs.org/typescript/-/typescript-5.5.2.tgz",
+            "integrity": "sha512-NcRtPEOsPFFWjobJEtfihkLCZCXZt/os3zf8nTxjVH3RvTSxjrCamJpbExGvYOF+tFHc3pA65qpdwPbzjohhew==",
             "bin": {
                 "tsc": "bin/tsc",
                 "tsserver": "bin/tsserver"
             },
             "engines": {
-                "node": ">=4.2.0"
+                "node": ">=14.17"
             }
         },
         "node_modules/typical": {
@@ -10860,7 +10861,7 @@
                 "@types/unicode-properties": "^1.3.0",
                 "@types/urijs": "^1.19.25",
                 "@types/wordwrap": "^1.0.3",
-                "typescript": "4.9.5"
+                "typescript": "5.5.2"
             }
         },
         "packages/quicktype-core/node_modules/pluralize": {
@@ -10881,7 +10882,7 @@
             "devDependencies": {
                 "@types/graphql": "^0.11.7",
                 "@types/node": "18.19.31",
-                "typescript": "4.9.5"
+                "typescript": "5.5.2"
             }
         },
         "packages/quicktype-typescript-input": {
@@ -10890,7 +10891,7 @@
             "dependencies": {
                 "@mark.probst/typescript-json-schema": "0.55.0",
                 "quicktype-core": "file:../quicktype-core",
-                "typescript": "4.9.5"
+                "typescript": "5.5.2"
             },
             "devDependencies": {
                 "@types/node": "18.19.31"
@@ -10983,7 +10984,7 @@
                 "node-persist": "^4.0.1",
                 "quicktype-core": "file:../quicktype-core",
                 "quicktype-typescript-input": "file:../quicktype-typescript-input",
-                "typescript": "^5.3.3",
+                "typescript": "5.5.2",
                 "unicode-properties": "github:quicktype/unicode-properties#dist"
             },
             "engines": {
@@ -11204,18 +11205,6 @@
                 "url": "https://github.com/sponsors/isaacs"
             }
         },
-        "packages/quicktype-vscode/node_modules/typescript": {
-            "version": "5.4.5",
-            "dev": true,
-            "license": "Apache-2.0",
-            "bin": {
-                "tsc": "bin/tsc",
-                "tsserver": "bin/tsserver"
-            },
-            "engines": {
-                "node": ">=14.17"
-            }
-        },
         "packages/quicktype-vscode/node_modules/unicode-properties": {
             "version": "1.1.0",
             "resolved": "git+ssh://git@github.com/quicktype/unicode-properties.git#d5fddfea1ef9d05c6479a979e225476063e13f52",
diff --git a/package.json b/package.json
index 2c8c4aede..21a0e9072 100644
--- a/package.json
+++ b/package.json
@@ -40,7 +40,7 @@
         "readable-stream": "^4.5.2",
         "stream-json": "1.8.0",
         "string-to-stream": "^3.0.1",
-        "typescript": "4.9.5"
+        "typescript": "5.5.2"
     },
     "devDependencies": {
         "@tsconfig/node18": "^1.0.1",
diff --git a/packages/quicktype-core/package.json b/packages/quicktype-core/package.json
index 580100e8d..af9a30661 100644
--- a/packages/quicktype-core/package.json
+++ b/packages/quicktype-core/package.json
@@ -36,7 +36,7 @@
         "@types/unicode-properties": "^1.3.0",
         "@types/urijs": "^1.19.25",
         "@types/wordwrap": "^1.0.3",
-        "typescript": "4.9.5"
+        "typescript": "5.5.2"
     },
     "files": [
         "dist"
diff --git a/packages/quicktype-graphql-input/package.json b/packages/quicktype-graphql-input/package.json
index 8a17ead16..8bd041657 100644
--- a/packages/quicktype-graphql-input/package.json
+++ b/packages/quicktype-graphql-input/package.json
@@ -18,7 +18,7 @@
     "devDependencies": {
         "@types/node": "18.19.31",
         "@types/graphql": "^0.11.7",
-        "typescript": "4.9.5"
+        "typescript": "5.5.2"
     },
     "files": [
         "dist"
diff --git a/packages/quicktype-typescript-input/package.json b/packages/quicktype-typescript-input/package.json
index b624fd081..379b87ab4 100644
--- a/packages/quicktype-typescript-input/package.json
+++ b/packages/quicktype-typescript-input/package.json
@@ -12,7 +12,7 @@
     },
     "dependencies": {
         "quicktype-core": "file:../quicktype-core",
-        "typescript": "4.9.5",
+        "typescript": "5.5.2",
         "@mark.probst/typescript-json-schema": "0.55.0"
     },
     "devDependencies": {
diff --git a/packages/quicktype-vscode/package.json b/packages/quicktype-vscode/package.json
index 5c96e9b56..3543f5076 100644
--- a/packages/quicktype-vscode/package.json
+++ b/packages/quicktype-vscode/package.json
@@ -154,7 +154,7 @@
         "@vscode/test-electron": "^2.3.9",
         "@vscode/vsce": "^2.25.0",
         "eslint": "^8.56.0",
-        "typescript": "^5.3.3",
+        "typescript": "^5.5.2",
         "node-persist": "^4.0.1",
         "quicktype-core": "file:../quicktype-core",
         "quicktype-typescript-input": "file:../quicktype-typescript-input",