chore: maybe fixing things!

Signed-off-by: blam <ben@blam.sh>

packages/cli/package.json

@@ -104,7 +104,7 @@
     "style-loader": "^1.2.1",
     "sucrase": "^3.18.2",
     "tar": "^6.1.2",
-    "terser-webpack-plugin": "^1.4.3",
+    "terser-webpack-plugin": "^5.1.3",
     "ts-loader": "^8.0.17",
     "typescript": "^4.0.3",
     "url-loader": "^4.1.0",
@@ -137,6 +137,7 @@
     "@types/rollup-plugin-peer-deps-external": "^2.2.0",
     "@types/rollup-plugin-postcss": "^2.0.0",
     "@types/tar": "^4.0.3",
+    "@types/terser-webpack-plugin": "^5.0.4",
     "@types/webpack": "^5.28.0",
     "@types/webpack-dev-server": "^3.11.5",
     "@types/yarnpkg__lockfile": "^1.1.4",

packages/cli/src/lib/bundler/optimization.ts

@@ -14,7 +14,7 @@
  * limitations under the License.
  */
 
-import { WebpackOptionsNormalized } from 'webpack';
+import { WebpackOptionsNormalized, WebpackPluginInstance } from 'webpack';
 import TerserPlugin from 'terser-webpack-plugin';
 import { BundlingOptions } from './types';
 import { isParallelDefault } from '../parallel';
@@ -30,9 +30,9 @@ export const optimization = (
     ...(!isParallelDefault(options.parallel)
       ? {
           minimizer: [
-            new TerserPlugin({
+            (new TerserPlugin({
               parallel: options.parallel,
-            }),
+            }) as unknown) as WebpackPluginInstance,
           ],
         }
       : {}),

packages/cli/src/types.d.ts

@@ -29,9 +29,6 @@ declare module '@svgr/rollup' {
 }
 
 declare module '@rollup/plugin-yaml';
-
-declare module 'terser-webpack-plugin';
-
 declare module 'react-dev-utils/formatWebpackMessages' {
   export default function (
     stats: any,