diff --git a/package.json b/package.json
index a58c82a0..825f6ba3 100644
--- a/package.json
+++ b/package.json
@@ -28,6 +28,6 @@
     "jest": "~29.5.0",
     "lerna": "~6.6.0",
     "strong-mock": "~8.0.0",
-    "typescript": "~4.9.0"
+    "typescript": "~5.9.0"
   }
 }
diff --git a/packages/contracts/package.json b/packages/contracts/package.json
index 396b7db3..d87454f2 100644
--- a/packages/contracts/package.json
+++ b/packages/contracts/package.json
@@ -40,6 +40,6 @@
   "devDependencies": {
     "@types/fs-extra": "~11.0.0",
     "mugshot": "^4.0.2",
-    "typescript": "~4.9.0"
+    "typescript": "~5.9.0"
   }
 }
diff --git a/packages/jimp/package.json b/packages/jimp/package.json
index 384f434f..a76235f2 100644
--- a/packages/jimp/package.json
+++ b/packages/jimp/package.json
@@ -35,6 +35,6 @@
     "@jimp/png": "~0.22.0"
   },
   "devDependencies": {
-    "typescript": "~4.9.0"
+    "typescript": "~5.9.0"
   }
 }
diff --git a/packages/mugshot/package.json b/packages/mugshot/package.json
index e06e07ab..2bfa654b 100644
--- a/packages/mugshot/package.json
+++ b/packages/mugshot/package.json
@@ -45,6 +45,6 @@
     "chai": "~4.3.0",
     "playwright": "~1.32.0",
     "strong-mock": "~8.0.0",
-    "typescript": "~4.9.0"
+    "typescript": "~5.9.0"
   }
 }
diff --git a/packages/playwright/package.json b/packages/playwright/package.json
index dd504f38..d8fd54b1 100644
--- a/packages/playwright/package.json
+++ b/packages/playwright/package.json
@@ -39,6 +39,6 @@
     "@mugshot/contracts": "~4.0.2",
     "mugshot": "^4.0.2",
     "playwright": "~1.32.0",
-    "typescript": "~4.9.0"
+    "typescript": "~5.9.0"
   }
 }
diff --git a/packages/puppeteer/package.json b/packages/puppeteer/package.json
index 1cb4e955..3340996b 100644
--- a/packages/puppeteer/package.json
+++ b/packages/puppeteer/package.json
@@ -39,6 +39,6 @@
     "@mugshot/contracts": "~4.0.2",
     "mugshot": "^4.0.2",
     "puppeteer": "~19.8.0",
-    "typescript": "~4.9.0"
+    "typescript": "~5.9.0"
   }
 }
diff --git a/packages/webdriverio/package.json b/packages/webdriverio/package.json
index 1d1f9f24..0b6eea05 100644
--- a/packages/webdriverio/package.json
+++ b/packages/webdriverio/package.json
@@ -41,7 +41,7 @@
   "devDependencies": {
     "@mugshot/contracts": "~4.0.2",
     "mugshot": "^4.0.2",
-    "typescript": "~4.9.0",
+    "typescript": "~5.9.0",
     "webdriverio": "~7.30.0"
   }
 }
diff --git a/packages/website/package.json b/packages/website/package.json
index dbf4e88b..5b8e43e4 100644
--- a/packages/website/package.json
+++ b/packages/website/package.json
@@ -26,7 +26,7 @@
     "react-dom": "~17.0.2",
     "typedoc": "~0.23.28",
     "typedoc-plugin-markdown": "~3.14.0",
-    "typescript": "~4.9.0",
+    "typescript": "~5.9.0",
     "url-loader": "~4.1.1",
     "webpack": "~5.78.0"
   },