diff --git a/js-given/package.json b/js-given/package.json
index d3671e98..64a760b2 100644
--- a/js-given/package.json
+++ b/js-given/package.json
@@ -88,7 +88,7 @@
     "protractor": "5.2.2",
     "rollup": "0.54.1",
     "rollup-plugin-babel": "3.0.3",
-    "rollup-plugin-uglify": "2.0.1",
+    "rollup-plugin-uglify": "3.0.0",
     "sinon": "4.1.6",
     "sinon-chai": "2.14.0",
     "tmp": "0.0.33"
diff --git a/js-given/yarn.lock b/js-given/yarn.lock
index 19aedda5..4fb014c7 100644
--- a/js-given/yarn.lock
+++ b/js-given/yarn.lock
@@ -1523,10 +1523,14 @@ combined-stream@^1.0.5, combined-stream@~1.0.5:
   dependencies:
     delayed-stream "~1.0.0"
 
-commander@2.11.0, commander@~2.11.0:
+commander@2.11.0:
   version "2.11.0"
   resolved "https://registry.yarnpkg.com/commander/-/commander-2.11.0.tgz#157152fd1e7a6c8d98a5b715cf376df928004563"
 
+commander@~2.13.0:
+  version "2.13.0"
+  resolved "https://registry.yarnpkg.com/commander/-/commander-2.13.0.tgz#6964bca67685df7c1f1430c584f07d7597885b9c"
+
 common-path-prefix@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/common-path-prefix/-/common-path-prefix-1.0.0.tgz#cd52f6f0712e0baab97d6f9732874f22f47752c0"
@@ -4684,11 +4688,11 @@ rollup-plugin-babel@3.0.3:
   dependencies:
     rollup-pluginutils "^1.5.0"
 
-rollup-plugin-uglify@2.0.1:
-  version "2.0.1"
-  resolved "https://registry.yarnpkg.com/rollup-plugin-uglify/-/rollup-plugin-uglify-2.0.1.tgz#67b37ad1efdafbd83af4c36b40c189ee4866c969"
+rollup-plugin-uglify@3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/rollup-plugin-uglify/-/rollup-plugin-uglify-3.0.0.tgz#a34eca24617709c6bf1778e9653baafa06099b86"
   dependencies:
-    uglify-js "^3.0.9"
+    uglify-es "^3.3.7"
 
 rollup-pluginutils@^1.5.0:
   version "1.5.2"
@@ -5056,7 +5060,7 @@ source-map@^0.5.0, source-map@^0.5.3, source-map@^0.5.6, source-map@~0.5.1, sour
   version "0.5.7"
   resolved "https://registry.yarnpkg.com/source-map/-/source-map-0.5.7.tgz#8a039d2d1021d22d1ea14c80d8ea468ba2ef3fcc"
 
-source-map@^0.6.0:
+source-map@^0.6.0, source-map@~0.6.1:
   version "0.6.1"
   resolved "https://registry.yarnpkg.com/source-map/-/source-map-0.6.1.tgz#74722af32e9614e9c287a8d0bbde48b5e2f1a263"
 
@@ -5420,6 +5424,13 @@ type-detect@^4.0.5:
   version "4.0.5"
   resolved "https://registry.yarnpkg.com/type-detect/-/type-detect-4.0.5.tgz#d70e5bc81db6de2a381bcaca0c6e0cbdc7635de2"
 
+uglify-es@^3.3.7:
+  version "3.3.7"
+  resolved "https://registry.yarnpkg.com/uglify-es/-/uglify-es-3.3.7.tgz#d1249af668666aba7cb1163e277455be9eb393cf"
+  dependencies:
+    commander "~2.13.0"
+    source-map "~0.6.1"
+
 uglify-js@^2.6:
   version "2.8.29"
   resolved "https://registry.yarnpkg.com/uglify-js/-/uglify-js-2.8.29.tgz#29c5733148057bb4e1f75df35b7a9cb72e6a59dd"
@@ -5429,13 +5440,6 @@ uglify-js@^2.6:
   optionalDependencies:
     uglify-to-browserify "~1.0.0"
 
-uglify-js@^3.0.9:
-  version "3.1.3"
-  resolved "https://registry.yarnpkg.com/uglify-js/-/uglify-js-3.1.3.tgz#d61f0453b4718cab01581f3162aa90bab7520b42"
-  dependencies:
-    commander "~2.11.0"
-    source-map "~0.5.1"
-
 uglify-to-browserify@~1.0.0:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/uglify-to-browserify/-/uglify-to-browserify-1.0.2.tgz#6e0924d6bda6b5afe349e39a6d632850a0f882b7"