diff --git a/package-lock.json b/package-lock.json
index f7e9c9e4..a9011901 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -244,6 +244,12 @@
             "once": "^1.3.0",
             "path-is-absolute": "^1.0.0"
           }
+        },
+        "typescript": {
+          "version": "3.9.9",
+          "resolved": "https://registry.npmjs.org/typescript/-/typescript-3.9.9.tgz",
+          "integrity": "sha512-kdMjTiekY+z/ubJCATUPlRDl39vXYiMV9iyeMuEuXZh2we6zz80uovNN2WlAxmmdE/Z/YQe+EbOEXB5RHEED3w==",
+          "dev": true
         }
       }
     },
@@ -1564,7 +1570,7 @@
     },
     "blinking": {
       "version": "0.0.3",
-      "resolved": "http://registry.npmjs.org/blinking/-/blinking-0.0.3.tgz",
+      "resolved": "https://registry.npmjs.org/blinking/-/blinking-0.0.3.tgz",
       "integrity": "sha1-c6LX+J2z2lSzYFxJiqXYYGv8Hnc=",
       "dev": true,
       "requires": {
@@ -10112,9 +10118,9 @@
       }
     },
     "typescript": {
-      "version": "3.9.7",
-      "resolved": "https://registry.npmjs.org/typescript/-/typescript-3.9.7.tgz",
-      "integrity": "sha512-BLbiRkiBzAwsjut4x/dsibSTB6yWpwT5qWmC2OfuCg3GgVQCSgMs4vEctYPhsaGtd0AeuuHMkjZ2h2WG8MSzRw==",
+      "version": "4.2.4",
+      "resolved": "https://registry.npmjs.org/typescript/-/typescript-4.2.4.tgz",
+      "integrity": "sha512-V+evlYHZnQkaz8TRBuxTA92yZBPotr5H+WhQ7bD3hZUndx5tGOa1fuCgeSjxAzM1RiN5IzvadIXTVefuuwZCRg==",
       "dev": true
     },
     "uglify-js": {
diff --git a/package.json b/package.json
index d74a3e7c..8c2fb835 100644
--- a/package.json
+++ b/package.json
@@ -129,7 +129,7 @@
     "ts-loader": "^7.0.5",
     "ts-node": "^8.10.2",
     "typed-error": "^3.2.1",
-    "typescript": "^3.9.7",
+    "typescript": "^4.2.4",
     "webpack": "^4.44.1",
     "webpack-cli": "^3.3.12",
     "winston": "^3.3.3",
diff --git a/src/compose/images.ts b/src/compose/images.ts
index 3312ae8f..3d2d0018 100644
--- a/src/compose/images.ts
+++ b/src/compose/images.ts
@@ -609,7 +609,7 @@ async function markAsSupervised(image: Image): Promise<void> {
 	);
 }
 
-function format(image: Image): Omit<Image, 'id'> {
+function format(image: Image): Partial<Omit<Image, 'id'>> {
 	return _(image)
 		.defaults({
 			serviceId: null,
diff --git a/src/config/backends/backend.ts b/src/config/backends/backend.ts
index 45aa0375..0665127a 100644
--- a/src/config/backends/backend.ts
+++ b/src/config/backends/backend.ts
@@ -23,7 +23,7 @@ export async function remountAndWriteAtomic(
 
 export abstract class ConfigBackend {
 	// Does this config backend support the given device type?
-	public abstract async matches(
+	public abstract matches(
 		deviceType: string,
 		metaRelease?: string,
 	): Promise<boolean>;
diff --git a/src/device-state.ts b/src/device-state.ts
index 3990c1b6..9ab41f5e 100644
--- a/src/device-state.ts
+++ b/src/device-state.ts
@@ -468,7 +468,7 @@ function emitAsync<T extends keyof DeviceStateEvents>(
 		: Array<DeviceStateEvents[T]>
 ) {
 	if (_.isArray(args)) {
-		return setImmediate(() => events.emit(ev as any, ...args));
+		return setImmediate(() => events.emit(ev as any, ...(args as any)));
 	} else {
 		return setImmediate(() => events.emit(ev as any, args));
 	}
diff --git a/src/migrations/M00001.js b/src/migrations/M00001.js
index 5430c974..eeebcfa4 100644
--- a/src/migrations/M00001.js
+++ b/src/migrations/M00001.js
@@ -21,7 +21,7 @@ exports.up = function (knex) {
 					console.log(
 						'Unable to locate config.json! Things may fail unexpectedly!',
 					);
-					resolve();
+					resolve(false);
 					return;
 				}
 				fs.readFile(configJsonPath, (err, data) => {
@@ -29,7 +29,7 @@ exports.up = function (knex) {
 						console.log(
 							'Failed to read config.json! Things may fail unexpectedly!',
 						);
-						resolve();
+						resolve(false);
 						return;
 					}
 					try {
@@ -44,13 +44,13 @@ exports.up = function (knex) {
 								);
 								return;
 							}
-							resolve();
+							resolve(false);
 						});
 					} catch (e) {
 						console.log(
 							'Failed to parse config.json! Things may fail unexpectedly!',
 						);
-						resolve();
+						resolve(false);
 					}
 				});
 			}).then(() => {
diff --git a/src/migrations/M00002.js b/src/migrations/M00002.js
index cf99e18c..46d670ca 100644
--- a/src/migrations/M00002.js
+++ b/src/migrations/M00002.js
@@ -17,7 +17,7 @@ exports.up = function (knex) {
 				console.log(
 					'Failed to read config.json! Things may fail unexpectedly!',
 				);
-				return resolve();
+				return resolve(false);
 			}
 			try {
 				const parsed = JSON.parse(data.toString());