diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index a8d60c16..8beeb999 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -51,6 +51,7 @@ build:
     stage: build
     before_script:
         - yarn install --immutable
+        - if [[ ! -z ${CI_COMMIT_TAG+x} ]]; then export NODE_ENV=production; fi
     script:
         - yarn build
         - mv dist ds4
diff --git a/package.json b/package.json
index 4e1042d8..3d88c228 100644
--- a/package.json
+++ b/package.json
@@ -78,6 +78,8 @@
         "lint-staged": "11.2.6",
         "prettier": "2.4.1",
         "rollup": "2.58.3",
+        "rollup-plugin-sourcemaps": "^0.6.3",
+        "rollup-plugin-terser": "^7.0.2",
         "rollup-plugin-typescript2": "0.30.0",
         "sass": "1.43.3",
         "semver": "7.3.5",
diff --git a/rollup.config.js b/rollup.config.js
index 3594effa..8699a6ea 100644
--- a/rollup.config.js
+++ b/rollup.config.js
@@ -3,6 +3,8 @@
 // SPDX-License-Identifier: MIT
 
 const typescript = require("rollup-plugin-typescript2");
+const sourcemaps = require("rollup-plugin-sourcemaps");
+const { terser } = require("rollup-plugin-terser");
 
 module.exports = {
     input: "src/module/ds4.ts",
@@ -11,5 +13,5 @@ module.exports = {
         format: "es",
         sourcemap: true,
     },
-    plugins: [typescript({})],
+    plugins: [sourcemaps(), typescript({}), process.env.NODE_ENV === "production" && terser()],
 };
diff --git a/yarn.lock b/yarn.lock
index 9e5c1865..bb15d28e 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -14,6 +14,15 @@ __metadata:
   languageName: node
   linkType: hard
 
+"@babel/code-frame@npm:^7.10.4":
+  version: 7.15.8
+  resolution: "@babel/code-frame@npm:7.15.8"
+  dependencies:
+    "@babel/highlight": ^7.14.5
+  checksum: d75950f0e0925b33ab5e870079134509c13bcdbf96c8bf4d0dea91606775bc044258c762104ab20882fda3b07cbff24176ed77dfb57af5a901bde33ddfe690bb
+  languageName: node
+  linkType: hard
+
 "@babel/code-frame@npm:^7.12.13, @babel/code-frame@npm:^7.14.5":
   version: 7.14.5
   resolution: "@babel/code-frame@npm:7.14.5"
@@ -1316,6 +1325,19 @@ __metadata:
   languageName: node
   linkType: hard
 
+"@rollup/pluginutils@npm:^3.0.9":
+  version: 3.1.0
+  resolution: "@rollup/pluginutils@npm:3.1.0"
+  dependencies:
+    "@types/estree": 0.0.39
+    estree-walker: ^1.0.1
+    picomatch: ^2.2.2
+  peerDependencies:
+    rollup: ^1.20.0||^2.0.0
+  checksum: 8be16e27863c219edbb25a4e6ec2fe0e1e451d9e917b6a43cf2ae5bc025a6b8faaa40f82a6e53b66d0de37b58ff472c6c3d57a83037ae635041f8df959d6d9aa
+  languageName: node
+  linkType: hard
+
 "@rollup/pluginutils@npm:^4.1.0":
   version: 4.1.0
   resolution: "@rollup/pluginutils@npm:4.1.0"
@@ -1419,6 +1441,13 @@ __metadata:
   languageName: node
   linkType: hard
 
+"@types/estree@npm:0.0.39":
+  version: 0.0.39
+  resolution: "@types/estree@npm:0.0.39"
+  checksum: 412fb5b9868f2c418126451821833414189b75cc6bf84361156feed733e3d92ec220b9d74a89e52722e03d5e241b2932732711b7497374a404fad49087adc248
+  languageName: node
+  linkType: hard
+
 "@types/fs-extra@npm:9.0.13":
   version: 9.0.13
   resolution: "@types/fs-extra@npm:9.0.13"
@@ -2845,6 +2874,13 @@ __metadata:
   languageName: node
   linkType: hard
 
+"commander@npm:^2.20.0":
+  version: 2.20.3
+  resolution: "commander@npm:2.20.3"
+  checksum: ab8c07884e42c3a8dbc5dd9592c606176c7eb5c1ca5ff274bcf907039b2c41de3626f684ea75ccf4d361ba004bbaff1f577d5384c155f3871e456bdf27becf9e
+  languageName: node
+  linkType: hard
+
 "commander@npm:^8.2.0":
   version: 8.2.0
   resolution: "commander@npm:8.2.0"
@@ -3481,6 +3517,8 @@ __metadata:
     lint-staged: 11.2.6
     prettier: 2.4.1
     rollup: 2.58.3
+    rollup-plugin-sourcemaps: ^0.6.3
+    rollup-plugin-terser: ^7.0.2
     rollup-plugin-typescript2: 0.30.0
     sass: 1.43.3
     semver: 7.3.5
@@ -3902,6 +3940,13 @@ __metadata:
   languageName: node
   linkType: hard
 
+"estree-walker@npm:^1.0.1":
+  version: 1.0.1
+  resolution: "estree-walker@npm:1.0.1"
+  checksum: 7e70da539691f6db03a08e7ce94f394ce2eef4180e136d251af299d41f92fb2d28ebcd9a6e393e3728d7970aeb5358705ddf7209d52fbcb2dd4693f95dcf925f
+  languageName: node
+  linkType: hard
+
 "estree-walker@npm:^2.0.1":
   version: 2.0.2
   resolution: "estree-walker@npm:2.0.2"
@@ -6050,6 +6095,17 @@ fsevents@^1.2.7:
   languageName: node
   linkType: hard
 
+"jest-worker@npm:^26.2.1":
+  version: 26.6.2
+  resolution: "jest-worker@npm:26.6.2"
+  dependencies:
+    "@types/node": "*"
+    merge-stream: ^2.0.0
+    supports-color: ^7.0.0
+  checksum: f9afa3b88e3f12027901e4964ba3ff048285b5783b5225cab28fac25b4058cea8ad54001e9a1577ee2bed125fac3ccf5c80dc507b120300cc1bbcb368796533e
+  languageName: node
+  linkType: hard
+
 "jest-worker@npm:^27.3.1":
   version: 27.3.1
   resolution: "jest-worker@npm:27.3.1"
@@ -7803,6 +7859,15 @@ fsevents@^1.2.7:
   languageName: node
   linkType: hard
 
+"randombytes@npm:^2.1.0":
+  version: 2.1.0
+  resolution: "randombytes@npm:2.1.0"
+  dependencies:
+    safe-buffer: ^5.1.0
+  checksum: d779499376bd4cbb435ef3ab9a957006c8682f343f14089ed5f27764e4645114196e75b7f6abf1cbd84fd247c0cb0651698444df8c9bf30e62120fbbc52269d6
+  languageName: node
+  linkType: hard
+
 "react-is@npm:^17.0.1":
   version: 17.0.2
   resolution: "react-is@npm:17.0.2"
@@ -8175,6 +8240,36 @@ fsevents@^1.2.7:
   languageName: node
   linkType: hard
 
+"rollup-plugin-sourcemaps@npm:^0.6.3":
+  version: 0.6.3
+  resolution: "rollup-plugin-sourcemaps@npm:0.6.3"
+  dependencies:
+    "@rollup/pluginutils": ^3.0.9
+    source-map-resolve: ^0.6.0
+  peerDependencies:
+    "@types/node": ">=10.0.0"
+    rollup: ">=0.31.2"
+  peerDependenciesMeta:
+    "@types/node":
+      optional: true
+  checksum: bb4909a90f2e824717a67ad146b2cccc40411ee54709ffa548c47c4dfe485bd55039a5850d7640ecb2691de9dc30e3fd57287e4d74331f36fed9c263d86dd4dc
+  languageName: node
+  linkType: hard
+
+"rollup-plugin-terser@npm:^7.0.2":
+  version: 7.0.2
+  resolution: "rollup-plugin-terser@npm:7.0.2"
+  dependencies:
+    "@babel/code-frame": ^7.10.4
+    jest-worker: ^26.2.1
+    serialize-javascript: ^4.0.0
+    terser: ^5.0.0
+  peerDependencies:
+    rollup: ^2.0.0
+  checksum: af84bb7a7a894cd00852b6486528dfb8653cf94df4c126f95f389a346f401d054b08c46bee519a2ab6a22b33804d1d6ac6d8c90b1b2bf8fffb097eed73fc3c72
+  languageName: node
+  linkType: hard
+
 "rollup-plugin-typescript2@npm:0.30.0":
   version: 0.30.0
   resolution: "rollup-plugin-typescript2@npm:0.30.0"
@@ -8318,6 +8413,15 @@ fsevents@^1.2.7:
   languageName: node
   linkType: hard
 
+"serialize-javascript@npm:^4.0.0":
+  version: 4.0.0
+  resolution: "serialize-javascript@npm:4.0.0"
+  dependencies:
+    randombytes: ^2.1.0
+  checksum: 3273b3394b951671fcf388726e9577021870dfbf85e742a1183fb2e91273e6101bdccea81ff230724f6659a7ee4cef924b0ff9baca32b79d9384ec37caf07302
+  languageName: node
+  linkType: hard
+
 "set-blocking@npm:^2.0.0, set-blocking@npm:~2.0.0":
   version: 2.0.0
   resolution: "set-blocking@npm:2.0.0"
@@ -8499,7 +8603,17 @@ fsevents@^1.2.7:
   languageName: node
   linkType: hard
 
-"source-map-support@npm:^0.5.17":
+"source-map-resolve@npm:^0.6.0":
+  version: 0.6.0
+  resolution: "source-map-resolve@npm:0.6.0"
+  dependencies:
+    atob: ^2.1.2
+    decode-uri-component: ^0.2.0
+  checksum: fe503b9e5dac1c54be835282fcfec10879434e7b3ee08a9774f230299c724a8d403484d9531276d1670c87390e0e4d1d3f92b14cca6e4a2445ea3016b786ecd4
+  languageName: node
+  linkType: hard
+
+"source-map-support@npm:^0.5.17, source-map-support@npm:~0.5.20":
   version: 0.5.20
   resolution: "source-map-support@npm:0.5.20"
   dependencies:
@@ -8540,7 +8654,7 @@ fsevents@^1.2.7:
   languageName: node
   linkType: hard
 
-"source-map@npm:^0.7.3":
+"source-map@npm:^0.7.3, source-map@npm:~0.7.2":
   version: 0.7.3
   resolution: "source-map@npm:0.7.3"
   checksum: cd24efb3b8fa69b64bf28e3c1b1a500de77e84260c5b7f2b873f88284df17974157cc88d386ee9b6d081f08fdd8242f3fc05c953685a6ad81aad94c7393dedea
@@ -8926,6 +9040,19 @@ fsevents@^1.2.7:
   languageName: node
   linkType: hard
 
+"terser@npm:^5.0.0":
+  version: 5.9.0
+  resolution: "terser@npm:5.9.0"
+  dependencies:
+    commander: ^2.20.0
+    source-map: ~0.7.2
+    source-map-support: ~0.5.20
+  bin:
+    terser: bin/terser
+  checksum: 11c1246b1991015a8881742878af779e3863fad42f626ffda957dbf28c94bf51e7994cffb9ffbec86ff3c23ab45ffa6d79d453c15e664306e35fc7b2c4eee5f4
+  languageName: node
+  linkType: hard
+
 "test-exclude@npm:^6.0.0":
   version: 6.0.0
   resolution: "test-exclude@npm:6.0.0"