diff --git a/package-lock.json b/package-lock.json
index 89f3b2c..4ae3199 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -2371,6 +2371,14 @@
         "tiny-glob": "^0.2.6",
         "tslib": "^1.10.0",
         "typescript": "^3.7.4"
+      },
+      "dependencies": {
+        "typescript": {
+          "version": "3.9.10",
+          "resolved": "https://registry.npmjs.org/typescript/-/typescript-3.9.10.tgz",
+          "integrity": "sha512-w6fIxVE/H1PkLKcCPsFqKE7Kv7QUwhU8qQY2MueZXWx5cPZdwFupLgKK3vntcK98BtNHZtAF4LA/yl2a7k8R6Q==",
+          "dev": true
+        }
       }
     },
     "minimist": {
@@ -3823,9 +3831,9 @@
       "dev": true
     },
     "typescript": {
-      "version": "3.7.5",
-      "resolved": "https://registry.npmjs.org/typescript/-/typescript-3.7.5.tgz",
-      "integrity": "sha512-/P5lkRXkWHNAbcJIiHPfRoKqyd7bsyCma1hZNUGfn20qm64T6ZBlrzprymeu918H+mB/0rIg2gGK/BXkhhYgBw==",
+      "version": "4.3.4",
+      "resolved": "https://registry.npmjs.org/typescript/-/typescript-4.3.4.tgz",
+      "integrity": "sha512-uauPG7XZn9F/mo+7MrsRjyvbxFpzemRjKEZXS4AK83oP2KKOJPvb+9cO/gmnv8arWZvhnjVOXz7B49m1l0e9Ew==",
       "dev": true
     },
     "unicode-canonical-property-names-ecmascript": {
diff --git a/package.json b/package.json
index f86555c..7b0bd59 100644
--- a/package.json
+++ b/package.json
@@ -26,6 +26,6 @@
   },
   "devDependencies": {
     "microbundle": "^0.12.0-next.7",
-    "typescript": "^3.7.5"
+    "typescript": "^4.3.4"
   }
 }