diff --git a/package-lock.json b/package-lock.json
index 5b728fc..d394ecd 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -22,7 +22,7 @@
         "@web/test-runner": "0.13.20",
         "@web/test-runner-puppeteer": "0.10.2",
         "snowpack": "3.8.8",
-        "typescript": "4.4.4"
+        "typescript": "4.9.5"
       }
     },
     "node_modules/@babel/code-frame": {
@@ -6977,9 +6977,9 @@
       }
     },
     "node_modules/typescript": {
-      "version": "4.4.4",
-      "resolved": "https://registry.npmjs.org/typescript/-/typescript-4.4.4.tgz",
-      "integrity": "sha512-DqGhF5IKoBl8WNf8C1gu8q0xZSInh9j1kJJMqT3a94w1JzVaBU4EXOSMrz9yDqMT0xt3selp83fuFMQ0uzv6qA==",
+      "version": "4.9.5",
+      "resolved": "https://registry.npmjs.org/typescript/-/typescript-4.9.5.tgz",
+      "integrity": "sha512-1FXk9E2Hm+QzZQ7z+McJiHL4NW1F2EzMu9Nq9i3zAaGqibafqYwCVU6WyWAuyQRRzOlxou8xZSyXLEN8oKj24g==",
       "dev": true,
       "bin": {
         "tsc": "bin/tsc",
@@ -12886,9 +12886,9 @@
       }
     },
     "typescript": {
-      "version": "4.4.4",
-      "resolved": "https://registry.npmjs.org/typescript/-/typescript-4.4.4.tgz",
-      "integrity": "sha512-DqGhF5IKoBl8WNf8C1gu8q0xZSInh9j1kJJMqT3a94w1JzVaBU4EXOSMrz9yDqMT0xt3selp83fuFMQ0uzv6qA==",
+      "version": "4.9.5",
+      "resolved": "https://registry.npmjs.org/typescript/-/typescript-4.9.5.tgz",
+      "integrity": "sha512-1FXk9E2Hm+QzZQ7z+McJiHL4NW1F2EzMu9Nq9i3zAaGqibafqYwCVU6WyWAuyQRRzOlxou8xZSyXLEN8oKj24g==",
       "dev": true
     },
     "typical": {
diff --git a/package.json b/package.json
index 29696a1..f8d18d8 100644
--- a/package.json
+++ b/package.json
@@ -35,6 +35,6 @@
     "@web/test-runner": "0.13.20",
     "@web/test-runner-puppeteer": "0.10.2",
     "snowpack": "3.8.8",
-    "typescript": "4.4.4"
+    "typescript": "4.9.5"
   }
 }