diff --git a/package.json b/package.json
index f353936..12850c0 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "ffbt",
-  "version": "1.0.0-rc.3",
+  "version": "1.0.0-rc.4",
   "description": "Build a Typescript app without pain",
   "license": "MIT",
   "engines": {
@@ -49,11 +49,11 @@
     "tslib": "^2.4.1",
     "tslint": "^6.0.0",
     "tslint-config-airbnb": "^5.11.2",
-    "typescript": "^4.3.4",
+    "typescript": "^4.9.5",
     "url-loader": "^4.1.1",
     "webpack": "^5.75.0",
     "webpack-bundle-analyzer": "^4.8.0",
-    "webpack-dev-server": "^4.11.1",
+    "webpack-dev-server": "^5.2.6",
     "webpack-merge": "^5.8.0",
     "webpack-notifier": "^1.15.0"
   },
@@ -63,7 +63,6 @@
     "@types/jest": "^27.5.2",
     "@types/node": "^14.17.4",
     "@types/stylelint": "^13.13.3",
-    "@types/webpack-dev-server": "^4.7.2",
     "@types/webpack-merge": "^5.0.0",
     "jest": "^27.3.1",
     "ts-jest": "^27.0.7",
diff --git a/src/services/webpack/runner/run-webpack-dev-server.ts b/src/services/webpack/runner/run-webpack-dev-server.ts
index 8781408..9feaea9 100644
--- a/src/services/webpack/runner/run-webpack-dev-server.ts
+++ b/src/services/webpack/runner/run-webpack-dev-server.ts
@@ -10,18 +10,23 @@ export class RunWebpackDevServerStrategy implements ServiceRunStrategy {
 
     run(): void {
         const compiler = webpack(this.webpackConfig);
-        const server = new WebpackDevServer(compiler, this.webpackConfig.devServer || {});
 
-        const {port, host} = {
-            port: 9091,
-            host: "localhost",
-            ...this.webpackConfig.devServer,
-        };
+        // webpack-dev-server v5 takes the options as the first argument and the
+        // compiler as the second, and reads port/host from those options rather
+        // than from listen() arguments.
+        const server = new WebpackDevServer(
+            {
+                port: 9091,
+                host: "localhost",
+                ...this.webpackConfig.devServer,
+            },
+            compiler,
+        );
 
-        server.listen(port, host, console.error);
+        server.start().catch(console.error);
 
         cleanupIfError(() => {
-            server.close();
+            server.stop();
         });
     }
 }