diff --git a/package-lock.json b/package-lock.json
index 6e8df89..81a66c4 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -12,7 +12,7 @@
         "@excaliburjs/testing": "0.26.0",
         "@rollup/plugin-image": "3.0.3",
         "@rollup/plugin-node-resolve": "15.3.0",
-        "@rollup/plugin-typescript": "11.1.6",
+        "@rollup/plugin-typescript": "12.1.1",
         "excalibur": "0.29.3",
         "npm-run-all2": "5.0.2",
         "rollup": "4.24.0",
@@ -199,9 +199,9 @@
       }
     },
     "node_modules/@rollup/plugin-typescript": {
-      "version": "11.1.6",
-      "resolved": "https://registry.npmjs.org/@rollup/plugin-typescript/-/plugin-typescript-11.1.6.tgz",
-      "integrity": "sha512-R92yOmIACgYdJ7dJ97p4K69I8gg6IEHt8M7dUBxN3W6nrO8uUxX5ixl0yU/N3aZTi8WhPuICvOHXQvF6FaykAA==",
+      "version": "12.1.1",
+      "resolved": "https://registry.npmjs.org/@rollup/plugin-typescript/-/plugin-typescript-12.1.1.tgz",
+      "integrity": "sha512-t7O653DpfB5MbFrqPe/VcKFFkvRuFNp9qId3xq4Eth5xlyymzxNpye2z8Hrl0RIMuXTSr5GGcFpkdlMeacUiFQ==",
       "dev": true,
       "dependencies": {
         "@rollup/pluginutils": "^5.1.0",
@@ -3474,9 +3474,9 @@
       }
     },
     "@rollup/plugin-typescript": {
-      "version": "11.1.6",
-      "resolved": "https://registry.npmjs.org/@rollup/plugin-typescript/-/plugin-typescript-11.1.6.tgz",
-      "integrity": "sha512-R92yOmIACgYdJ7dJ97p4K69I8gg6IEHt8M7dUBxN3W6nrO8uUxX5ixl0yU/N3aZTi8WhPuICvOHXQvF6FaykAA==",
+      "version": "12.1.1",
+      "resolved": "https://registry.npmjs.org/@rollup/plugin-typescript/-/plugin-typescript-12.1.1.tgz",
+      "integrity": "sha512-t7O653DpfB5MbFrqPe/VcKFFkvRuFNp9qId3xq4Eth5xlyymzxNpye2z8Hrl0RIMuXTSr5GGcFpkdlMeacUiFQ==",
       "dev": true,
       "requires": {
         "@rollup/pluginutils": "^5.1.0",
diff --git a/package.json b/package.json
index 40d5ceb..10f0bac 100644
--- a/package.json
+++ b/package.json
@@ -28,7 +28,7 @@
   "devDependencies": {
     "@rollup/plugin-image": "3.0.3",
     "@rollup/plugin-node-resolve": "15.3.0",
-    "@rollup/plugin-typescript": "11.1.6",
+    "@rollup/plugin-typescript": "12.1.1",
     "excalibur": "0.29.3",
     "npm-run-all2": "5.0.2",
     "rollup": "4.24.0",