diff --git a/go.mod b/go.mod
index dab6b498e..ccb130f48 100644
--- a/go.mod
+++ b/go.mod
@@ -1,6 +1,6 @@
 module github.com/gopherjs/gopherjs
 
-go 1.19
+go 1.18
 
 require (
 	github.com/evanw/esbuild v0.18.0
diff --git a/package-lock.json b/package-lock.json
index ab810e545..8efdaca3e 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -10,28 +10,12 @@
         "source-map-support": "^0.5.19"
       },
       "devDependencies": {
-        "uglify-js": "^3.13.0"
+        "uglify-es": "^3.3.9"
       },
       "optionalDependencies": {
         "syscall": "file:./node-syscall"
       }
     },
-    "node_modules/balanced-match": {
-      "version": "1.0.2",
-      "resolved": "https://workivaeast.jfrog.io/workivaeast/api/npm/npm-prod/balanced-match/-/balanced-match-1.0.2.tgz",
-      "integrity": "sha512-3oSeUO0TMV67hN1AmbXsK4yaqU7tjiHlbxRDZOpH0KW9+CeX4bRAaX0Anxt0tx2MrpRpWwQaPwIlISEJhYU5Pw==",
-      "optional": true
-    },
-    "node_modules/brace-expansion": {
-      "version": "1.1.11",
-      "resolved": "https://workivaeast.jfrog.io/workivaeast/api/npm/npm-prod/brace-expansion/-/brace-expansion-1.1.11.tgz",
-      "integrity": "sha512-iCuPHDFgrHX7H2vEI/5xpz07zSHB00TpugqhmYtVmMO6518mCuRMoOYFldEBl0g187ufozdaHgWKcYFb61qGiA==",
-      "optional": true,
-      "dependencies": {
-        "balanced-match": "^1.0.0",
-        "concat-map": "0.0.1"
-      }
-    },
     "node_modules/buffer-from": {
       "version": "1.1.2",
       "resolved": "https://registry.npmjs.org/buffer-from/-/buffer-from-1.1.2.tgz",
@@ -46,11 +30,11 @@
         "node": ">=10"
       }
     },
-    "node_modules/concat-map": {
-      "version": "0.0.1",
-      "resolved": "https://workivaeast.jfrog.io/workivaeast/api/npm/npm-prod/concat-map/-/concat-map-0.0.1.tgz",
-      "integrity": "sha512-/Srv4dswyQNBfohGpz9o6Yb3Gz3SrUDqBH5rTuhGR7ahtlbYKnVxw2bCFMRljaA7EXHaXZ8wsHdodFvbkhKmqg==",
-      "optional": true
+    "node_modules/commander": {
+      "version": "2.13.0",
+      "resolved": "https://registry.npmjs.org/commander/-/commander-2.13.0.tgz",
+      "integrity": "sha512-MVuS359B+YzaWqjCL/c+22gfryv+mCBPHAv3zyVI2GN8EY6IRP8VwtasXn8jyyhvvq84R4ImN1OKRtcbIasjYA==",
+      "dev": true
     },
     "node_modules/fs-minipass": {
       "version": "2.1.0",
@@ -64,45 +48,6 @@
         "node": ">= 8"
       }
     },
-    "node_modules/http-cache-semantics": {
-      "version": "4.1.1",
-      "resolved": "https://workivaeast.jfrog.io/workivaeast/api/npm/npm-prod/http-cache-semantics/-/http-cache-semantics-4.1.1.tgz",
-      "integrity": "sha512-er295DKPVsV82j5kw1Gjt+ADA/XYHsajl82cGNQG2eyoPkvgUhX+nDIyelzhIWbbsXP39EHcI6l5tYs2FYqYXQ==",
-      "optional": true
-    },
-    "node_modules/ip-address": {
-      "version": "9.0.5",
-      "resolved": "https://workivaeast.jfrog.io/workivaeast/api/npm/npm-prod/ip-address/-/ip-address-9.0.5.tgz",
-      "integrity": "sha512-zHtQzGojZXTwZTHQqra+ETKd4Sn3vgi7uBmlPoXVWZqYvuKmtI0l/VZTjqGmJY9x88GGOaZ9+G9ES8hC4T4X8g==",
-      "license": "MIT",
-      "optional": true,
-      "dependencies": {
-        "jsbn": "1.1.0",
-        "sprintf-js": "^1.1.3"
-      },
-      "engines": {
-        "node": ">= 12"
-      }
-    },
-    "node_modules/jsbn": {
-      "version": "1.1.0",
-      "resolved": "https://workivaeast.jfrog.io/workivaeast/api/npm/npm-prod/jsbn/-/jsbn-1.1.0.tgz",
-      "integrity": "sha512-4bYVV3aAMtDTTu4+xsDYa6sy9GyJ69/amsu9sYF2zqjiEoZA5xJi3BrfX3uY+/IekIu7MwdObdbDWpoZdBv3/A==",
-      "license": "MIT",
-      "optional": true
-    },
-    "node_modules/minimatch": {
-      "version": "3.1.2",
-      "resolved": "https://workivaeast.jfrog.io/workivaeast/api/npm/npm-prod/minimatch/-/minimatch-3.1.2.tgz",
-      "integrity": "sha512-J7p63hRiAjw1NDEww1W7i37+ByIrOWO5XQQAzZ3VOcL0PNybwpfmV/N05zFAzwQ9USyEcX6t3UO+K5aqBQOIHw==",
-      "optional": true,
-      "dependencies": {
-        "brace-expansion": "^1.1.7"
-      },
-      "engines": {
-        "node": "*"
-      }
-    },
     "node_modules/minipass": {
       "version": "3.1.5",
       "resolved": "https://registry.npmjs.org/minipass/-/minipass-3.1.5.tgz",
@@ -140,44 +85,6 @@
         "node": ">=10"
       }
     },
-    "node_modules/semver": {
-      "version": "7.6.2",
-      "resolved": "https://workivaeast.jfrog.io/workivaeast/api/npm/npm-prod/semver/-/semver-7.6.2.tgz",
-      "integrity": "sha512-FNAIBWCx9qcRhoHcgcJ0gvU7SN1lYU2ZXuSfl04bSC5OpvDHFyJCjdNHomPXxjQlCBU67YW64PzY7/VIEH7F2w==",
-      "optional": true,
-      "bin": {
-        "semver": "bin/semver.js"
-      },
-      "engines": {
-        "node": ">=10"
-      }
-    },
-    "node_modules/smart-buffer": {
-      "version": "4.2.0",
-      "resolved": "https://workivaeast.jfrog.io/workivaeast/api/npm/npm-prod/smart-buffer/-/smart-buffer-4.2.0.tgz",
-      "integrity": "sha512-94hK0Hh8rPqQl2xXc3HsaBoOXKV20MToPkcXvwbISWLEs+64sBq5kFgn2kJDHb1Pry9yrP0dxrCI9RRci7RXKg==",
-      "license": "MIT",
-      "optional": true,
-      "engines": {
-        "node": ">= 6.0.0",
-        "npm": ">= 3.0.0"
-      }
-    },
-    "node_modules/socks": {
-      "version": "2.8.3",
-      "resolved": "https://workivaeast.jfrog.io/workivaeast/api/npm/npm-prod/socks/-/socks-2.8.3.tgz",
-      "integrity": "sha512-l5x7VUUWbjVFbafGLxPWkYsHIhEvmF85tbIeFZWc8ZPtoMyybuEhL7Jye/ooC4/d48FgOjSJXgsF/AJPYCW8Zw==",
-      "license": "MIT",
-      "optional": true,
-      "dependencies": {
-        "ip-address": "^9.0.5",
-        "smart-buffer": "^4.2.0"
-      },
-      "engines": {
-        "node": ">= 10.0.0",
-        "npm": ">= 3.0.0"
-      }
-    },
     "node_modules/source-map": {
       "version": "0.6.1",
       "resolved": "https://registry.npmjs.org/source-map/-/source-map-0.6.1.tgz",
@@ -195,13 +102,6 @@
         "source-map": "^0.6.0"
       }
     },
-    "node_modules/sprintf-js": {
-      "version": "1.1.3",
-      "resolved": "https://workivaeast.jfrog.io/workivaeast/api/npm/npm-prod/sprintf-js/-/sprintf-js-1.1.3.tgz",
-      "integrity": "sha512-Oo+0REFV59/rz3gfJNKQiBlwfHaSESl1pcGyABQsnnIfWOFt6JNj5gCog2U6MLZ//IGYD+nA8nI+mTShREReaA==",
-      "license": "BSD-3-Clause",
-      "optional": true
-    },
     "node_modules/syscall": {
       "resolved": "node-syscall",
       "link": true
@@ -232,12 +132,16 @@
         "node": ">=8"
       }
     },
-    "node_modules/uglify-js": {
-      "version": "3.18.0",
-      "resolved": "https://workivaeast.jfrog.io/workivaeast/api/npm/npm-prod/uglify-js/-/uglify-js-3.18.0.tgz",
-      "integrity": "sha512-SyVVbcNBCk0dzr9XL/R/ySrmYf0s372K6/hFklzgcp2lBFyXtw4I7BOdDjlLhE1aVqaI/SHWXWmYdlZxuyF38A==",
+    "node_modules/uglify-es": {
+      "version": "3.3.9",
+      "resolved": "https://registry.npmjs.org/uglify-es/-/uglify-es-3.3.9.tgz",
+      "integrity": "sha512-r+MU0rfv4L/0eeW3xZrd16t4NZfK8Ld4SWVglYBb7ez5uXFWHuVRs6xCTrf1yirs9a4j4Y27nn7SRfO6v67XsQ==",
+      "deprecated": "support for ECMAScript is superseded by `uglify-js` as of v3.13.0",
       "dev": true,
-      "license": "BSD-2-Clause",
+      "dependencies": {
+        "commander": "~2.13.0",
+        "source-map": "~0.6.1"
+      },
       "bin": {
         "uglifyjs": "bin/uglifyjs"
       },
@@ -352,6 +256,22 @@
         "readable-stream": "^2.0.6"
       }
     },
+    "node-syscall/node_modules/balanced-match": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmjs.org/balanced-match/-/balanced-match-1.0.2.tgz",
+      "integrity": "sha512-3oSeUO0TMV67hN1AmbXsK4yaqU7tjiHlbxRDZOpH0KW9+CeX4bRAaX0Anxt0tx2MrpRpWwQaPwIlISEJhYU5Pw==",
+      "optional": true
+    },
+    "node-syscall/node_modules/brace-expansion": {
+      "version": "1.1.11",
+      "resolved": "https://registry.npmjs.org/brace-expansion/-/brace-expansion-1.1.11.tgz",
+      "integrity": "sha512-iCuPHDFgrHX7H2vEI/5xpz07zSHB00TpugqhmYtVmMO6518mCuRMoOYFldEBl0g187ufozdaHgWKcYFb61qGiA==",
+      "optional": true,
+      "dependencies": {
+        "balanced-match": "^1.0.0",
+        "concat-map": "0.0.1"
+      }
+    },
     "node-syscall/node_modules/cacache": {
       "version": "15.2.0",
       "resolved": "https://registry.npmjs.org/cacache/-/cacache-15.2.0.tgz",
@@ -398,6 +318,12 @@
         "node": ">=0.10.0"
       }
     },
+    "node-syscall/node_modules/concat-map": {
+      "version": "0.0.1",
+      "resolved": "https://registry.npmjs.org/concat-map/-/concat-map-0.0.1.tgz",
+      "integrity": "sha1-2Klr13/Wjfd5OnMDajug1UBdR3s=",
+      "optional": true
+    },
     "node-syscall/node_modules/console-control-strings": {
       "version": "1.1.0",
       "resolved": "https://registry.npmjs.org/console-control-strings/-/console-control-strings-1.1.0.tgz",
@@ -520,6 +446,12 @@
       "integrity": "sha1-4Ob+aijPUROIVeCG0Wkedx3iqLk=",
       "optional": true
     },
+    "node-syscall/node_modules/http-cache-semantics": {
+      "version": "4.1.0",
+      "resolved": "https://registry.npmjs.org/http-cache-semantics/-/http-cache-semantics-4.1.0.tgz",
+      "integrity": "sha512-carPklcUh7ROWRK7Cv27RPtdhYhUsela/ue5/jKzjegVvXDqM2ILE9Q2BGn9JZJh1g87cp56su/FgQSzcWS8cQ==",
+      "optional": true
+    },
     "node-syscall/node_modules/http-proxy-agent": {
       "version": "4.0.1",
       "resolved": "https://registry.npmjs.org/http-proxy-agent/-/http-proxy-agent-4.0.1.tgz",
@@ -608,6 +540,12 @@
       "integrity": "sha512-k/vGaX4/Yla3WzyMCvTQOXYeIHvqOKtnqBduzTHpzpQZzAskKMhZ2K+EnBiSM9zGSoIFeMpXKxa4dYeZIQqewQ==",
       "optional": true
     },
+    "node-syscall/node_modules/ip": {
+      "version": "1.1.5",
+      "resolved": "https://registry.npmjs.org/ip/-/ip-1.1.5.tgz",
+      "integrity": "sha1-vd7XARQpCCjAoDnnLvJfWq7ENUo=",
+      "optional": true
+    },
     "node-syscall/node_modules/is-fullwidth-code-point": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/is-fullwidth-code-point/-/is-fullwidth-code-point-1.0.0.tgz",
@@ -676,6 +614,18 @@
         "node": ">= 10"
       }
     },
+    "node-syscall/node_modules/minimatch": {
+      "version": "3.0.4",
+      "resolved": "https://registry.npmjs.org/minimatch/-/minimatch-3.0.4.tgz",
+      "integrity": "sha512-yJHVQEhyqPLUTgt9B83PXu6W3rx4MvvHvSUvToogpwoGDOUQ+yDrR0HRot+yOCdCO7u4hX3pWft6kWBBcqh0UA==",
+      "optional": true,
+      "dependencies": {
+        "brace-expansion": "^1.1.7"
+      },
+      "engines": {
+        "node": "*"
+      }
+    },
     "node-syscall/node_modules/minipass-collect": {
       "version": "1.0.2",
       "resolved": "https://registry.npmjs.org/minipass-collect/-/minipass-collect-1.0.2.tgz",
@@ -925,6 +875,21 @@
       "integrity": "sha512-YZo3K82SD7Riyi0E1EQPojLz7kpepnSQI9IyPbHHg1XXXevb5dJI7tpyN2ADxGcQbHG7vcyRHk0cbwqcQriUtg==",
       "optional": true
     },
+    "node-syscall/node_modules/semver": {
+      "version": "7.3.5",
+      "resolved": "https://registry.npmjs.org/semver/-/semver-7.3.5.tgz",
+      "integrity": "sha512-PoeGJYh8HK4BTO/a9Tf6ZG3veo/A7ZVsYrSA6J8ny9nb3B1VrpkuN+z9OE5wfE5p6H4LchYZsegiQgbJD94ZFQ==",
+      "optional": true,
+      "dependencies": {
+        "lru-cache": "^6.0.0"
+      },
+      "bin": {
+        "semver": "bin/semver.js"
+      },
+      "engines": {
+        "node": ">=10"
+      }
+    },
     "node-syscall/node_modules/set-blocking": {
       "version": "2.0.0",
       "resolved": "https://registry.npmjs.org/set-blocking/-/set-blocking-2.0.0.tgz",
@@ -937,6 +902,30 @@
       "integrity": "sha512-VUJ49FC8U1OxwZLxIbTTrDvLnf/6TDgxZcK8wxR8zs13xpx7xbG60ndBlhNrFi2EMuFRoeDoJO7wthSLq42EjA==",
       "optional": true
     },
+    "node-syscall/node_modules/smart-buffer": {
+      "version": "4.1.0",
+      "resolved": "https://registry.npmjs.org/smart-buffer/-/smart-buffer-4.1.0.tgz",
+      "integrity": "sha512-iVICrxOzCynf/SNaBQCw34eM9jROU/s5rzIhpOvzhzuYHfJR/DhZfDkXiZSgKXfgv26HT3Yni3AV/DGw0cGnnw==",
+      "optional": true,
+      "engines": {
+        "node": ">= 6.0.0",
+        "npm": ">= 3.0.0"
+      }
+    },
+    "node-syscall/node_modules/socks": {
+      "version": "2.6.1",
+      "resolved": "https://registry.npmjs.org/socks/-/socks-2.6.1.tgz",
+      "integrity": "sha512-kLQ9N5ucj8uIcxrDwjm0Jsqk06xdpBjGNQtpXy4Q8/QY2k+fY7nZH8CARy+hkbG+SGAovmzzuauCpBlb8FrnBA==",
+      "optional": true,
+      "dependencies": {
+        "ip": "^1.1.5",
+        "smart-buffer": "^4.1.0"
+      },
+      "engines": {
+        "node": ">= 10.13.0",
+        "npm": ">= 3.0.0"
+      }
+    },
     "node-syscall/node_modules/socks-proxy-agent": {
       "version": "5.0.1",
       "resolved": "https://registry.npmjs.org/socks-proxy-agent/-/socks-proxy-agent-5.0.1.tgz",
@@ -1054,22 +1043,6 @@
     }
   },
   "dependencies": {
-    "balanced-match": {
-      "version": "1.0.2",
-      "resolved": "https://workivaeast.jfrog.io/workivaeast/api/npm/npm-prod/balanced-match/-/balanced-match-1.0.2.tgz",
-      "integrity": "sha512-3oSeUO0TMV67hN1AmbXsK4yaqU7tjiHlbxRDZOpH0KW9+CeX4bRAaX0Anxt0tx2MrpRpWwQaPwIlISEJhYU5Pw==",
-      "optional": true
-    },
-    "brace-expansion": {
-      "version": "1.1.11",
-      "resolved": "https://workivaeast.jfrog.io/workivaeast/api/npm/npm-prod/brace-expansion/-/brace-expansion-1.1.11.tgz",
-      "integrity": "sha512-iCuPHDFgrHX7H2vEI/5xpz07zSHB00TpugqhmYtVmMO6518mCuRMoOYFldEBl0g187ufozdaHgWKcYFb61qGiA==",
-      "optional": true,
-      "requires": {
-        "balanced-match": "^1.0.0",
-        "concat-map": "0.0.1"
-      }
-    },
     "buffer-from": {
       "version": "1.1.2",
       "resolved": "https://registry.npmjs.org/buffer-from/-/buffer-from-1.1.2.tgz",
@@ -1081,11 +1054,11 @@
       "integrity": "sha512-bIomtDF5KGpdogkLd9VspvFzk9KfpyyGlS8YFVZl7TGPBHL5snIOnxeshwVgPteQ9b4Eydl+pVbIyE1DcvCWgQ==",
       "optional": true
     },
-    "concat-map": {
-      "version": "0.0.1",
-      "resolved": "https://workivaeast.jfrog.io/workivaeast/api/npm/npm-prod/concat-map/-/concat-map-0.0.1.tgz",
-      "integrity": "sha512-/Srv4dswyQNBfohGpz9o6Yb3Gz3SrUDqBH5rTuhGR7ahtlbYKnVxw2bCFMRljaA7EXHaXZ8wsHdodFvbkhKmqg==",
-      "optional": true
+    "commander": {
+      "version": "2.13.0",
+      "resolved": "https://registry.npmjs.org/commander/-/commander-2.13.0.tgz",
+      "integrity": "sha512-MVuS359B+YzaWqjCL/c+22gfryv+mCBPHAv3zyVI2GN8EY6IRP8VwtasXn8jyyhvvq84R4ImN1OKRtcbIasjYA==",
+      "dev": true
     },
     "fs-minipass": {
       "version": "2.1.0",
@@ -1096,37 +1069,6 @@
         "minipass": "^3.0.0"
       }
     },
-    "http-cache-semantics": {
-      "version": "4.1.1",
-      "resolved": "https://workivaeast.jfrog.io/workivaeast/api/npm/npm-prod/http-cache-semantics/-/http-cache-semantics-4.1.1.tgz",
-      "integrity": "sha512-er295DKPVsV82j5kw1Gjt+ADA/XYHsajl82cGNQG2eyoPkvgUhX+nDIyelzhIWbbsXP39EHcI6l5tYs2FYqYXQ==",
-      "optional": true
-    },
-    "ip-address": {
-      "version": "9.0.5",
-      "resolved": "https://workivaeast.jfrog.io/workivaeast/api/npm/npm-prod/ip-address/-/ip-address-9.0.5.tgz",
-      "integrity": "sha512-zHtQzGojZXTwZTHQqra+ETKd4Sn3vgi7uBmlPoXVWZqYvuKmtI0l/VZTjqGmJY9x88GGOaZ9+G9ES8hC4T4X8g==",
-      "optional": true,
-      "requires": {
-        "jsbn": "1.1.0",
-        "sprintf-js": "^1.1.3"
-      }
-    },
-    "jsbn": {
-      "version": "1.1.0",
-      "resolved": "https://workivaeast.jfrog.io/workivaeast/api/npm/npm-prod/jsbn/-/jsbn-1.1.0.tgz",
-      "integrity": "sha512-4bYVV3aAMtDTTu4+xsDYa6sy9GyJ69/amsu9sYF2zqjiEoZA5xJi3BrfX3uY+/IekIu7MwdObdbDWpoZdBv3/A==",
-      "optional": true
-    },
-    "minimatch": {
-      "version": "3.1.2",
-      "resolved": "https://workivaeast.jfrog.io/workivaeast/api/npm/npm-prod/minimatch/-/minimatch-3.1.2.tgz",
-      "integrity": "sha512-J7p63hRiAjw1NDEww1W7i37+ByIrOWO5XQQAzZ3VOcL0PNybwpfmV/N05zFAzwQ9USyEcX6t3UO+K5aqBQOIHw==",
-      "optional": true,
-      "requires": {
-        "brace-expansion": "^1.1.7"
-      }
-    },
     "minipass": {
       "version": "3.1.5",
       "resolved": "https://registry.npmjs.org/minipass/-/minipass-3.1.5.tgz",
@@ -1152,28 +1094,6 @@
       "integrity": "sha512-vVqVZQyf3WLx2Shd0qJ9xuvqgAyKPLAiqITEtqW0oIUjzo3PePDd6fW9iFz30ef7Ysp/oiWqbhszeGWW2T6Gzw==",
       "optional": true
     },
-    "semver": {
-      "version": "7.6.2",
-      "resolved": "https://workivaeast.jfrog.io/workivaeast/api/npm/npm-prod/semver/-/semver-7.6.2.tgz",
-      "integrity": "sha512-FNAIBWCx9qcRhoHcgcJ0gvU7SN1lYU2ZXuSfl04bSC5OpvDHFyJCjdNHomPXxjQlCBU67YW64PzY7/VIEH7F2w==",
-      "optional": true
-    },
-    "smart-buffer": {
-      "version": "4.2.0",
-      "resolved": "https://workivaeast.jfrog.io/workivaeast/api/npm/npm-prod/smart-buffer/-/smart-buffer-4.2.0.tgz",
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-      "resolved": "https://workivaeast.jfrog.io/workivaeast/api/npm/npm-prod/socks/-/socks-2.8.3.tgz",
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@@ -1188,12 +1108,6 @@
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-    "sprintf-js": {
-      "version": "1.1.3",
-      "resolved": "https://workivaeast.jfrog.io/workivaeast/api/npm/npm-prod/sprintf-js/-/sprintf-js-1.1.3.tgz",
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@@ -1274,6 +1188,22 @@
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+          "resolved": "https://registry.npmjs.org/balanced-match/-/balanced-match-1.0.2.tgz",
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+          "version": "1.1.11",
+          "resolved": "https://registry.npmjs.org/brace-expansion/-/brace-expansion-1.1.11.tgz",
+          "integrity": "sha512-iCuPHDFgrHX7H2vEI/5xpz07zSHB00TpugqhmYtVmMO6518mCuRMoOYFldEBl0g187ufozdaHgWKcYFb61qGiA==",
+          "optional": true,
+          "requires": {
+            "balanced-match": "^1.0.0",
+            "concat-map": "0.0.1"
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@@ -1311,6 +1241,12 @@
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+        "concat-map": {
+          "version": "0.0.1",
+          "resolved": "https://registry.npmjs.org/concat-map/-/concat-map-0.0.1.tgz",
+          "integrity": "sha1-2Klr13/Wjfd5OnMDajug1UBdR3s=",
+          "optional": true
+        },
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@@ -1413,6 +1349,12 @@
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+        "http-cache-semantics": {
+          "version": "4.1.0",
+          "resolved": "https://registry.npmjs.org/http-cache-semantics/-/http-cache-semantics-4.1.0.tgz",
+          "integrity": "sha512-carPklcUh7ROWRK7Cv27RPtdhYhUsela/ue5/jKzjegVvXDqM2ILE9Q2BGn9JZJh1g87cp56su/FgQSzcWS8cQ==",
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+        },
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@@ -1486,6 +1428,12 @@
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+        "ip": {
+          "version": "1.1.5",
+          "resolved": "https://registry.npmjs.org/ip/-/ip-1.1.5.tgz",
+          "integrity": "sha1-vd7XARQpCCjAoDnnLvJfWq7ENUo=",
+          "optional": true
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@@ -1545,6 +1493,15 @@
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           }
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+        "minimatch": {
+          "version": "3.0.4",
+          "resolved": "https://registry.npmjs.org/minimatch/-/minimatch-3.0.4.tgz",
+          "integrity": "sha512-yJHVQEhyqPLUTgt9B83PXu6W3rx4MvvHvSUvToogpwoGDOUQ+yDrR0HRot+yOCdCO7u4hX3pWft6kWBBcqh0UA==",
+          "optional": true,
+          "requires": {
+            "brace-expansion": "^1.1.7"
+          }
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@@ -1738,6 +1695,15 @@
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+        "semver": {
+          "version": "7.3.5",
+          "resolved": "https://registry.npmjs.org/semver/-/semver-7.3.5.tgz",
+          "integrity": "sha512-PoeGJYh8HK4BTO/a9Tf6ZG3veo/A7ZVsYrSA6J8ny9nb3B1VrpkuN+z9OE5wfE5p6H4LchYZsegiQgbJD94ZFQ==",
+          "optional": true,
+          "requires": {
+            "lru-cache": "^6.0.0"
+          }
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         "set-blocking": {
           "version": "2.0.0",
           "resolved": "https://registry.npmjs.org/set-blocking/-/set-blocking-2.0.0.tgz",
@@ -1750,6 +1716,22 @@
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           "optional": true
         },
+        "smart-buffer": {
+          "version": "4.1.0",
+          "resolved": "https://registry.npmjs.org/smart-buffer/-/smart-buffer-4.1.0.tgz",
+          "integrity": "sha512-iVICrxOzCynf/SNaBQCw34eM9jROU/s5rzIhpOvzhzuYHfJR/DhZfDkXiZSgKXfgv26HT3Yni3AV/DGw0cGnnw==",
+          "optional": true
+        },
+        "socks": {
+          "version": "2.6.1",
+          "resolved": "https://registry.npmjs.org/socks/-/socks-2.6.1.tgz",
+          "integrity": "sha512-kLQ9N5ucj8uIcxrDwjm0Jsqk06xdpBjGNQtpXy4Q8/QY2k+fY7nZH8CARy+hkbG+SGAovmzzuauCpBlb8FrnBA==",
+          "optional": true,
+          "requires": {
+            "ip": "^1.1.5",
+            "smart-buffer": "^4.1.0"
+          }
+        },
         "socks-proxy-agent": {
           "version": "5.0.1",
           "resolved": "https://registry.npmjs.org/socks-proxy-agent/-/socks-proxy-agent-5.0.1.tgz",
@@ -1871,11 +1853,15 @@
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-    "uglify-js": {
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-      "resolved": "https://workivaeast.jfrog.io/workivaeast/api/npm/npm-prod/uglify-js/-/uglify-js-3.18.0.tgz",
-      "integrity": "sha512-SyVVbcNBCk0dzr9XL/R/ySrmYf0s372K6/hFklzgcp2lBFyXtw4I7BOdDjlLhE1aVqaI/SHWXWmYdlZxuyF38A==",
-      "dev": true
+    "uglify-es": {
+      "version": "3.3.9",
+      "resolved": "https://registry.npmjs.org/uglify-es/-/uglify-es-3.3.9.tgz",
+      "integrity": "sha512-r+MU0rfv4L/0eeW3xZrd16t4NZfK8Ld4SWVglYBb7ez5uXFWHuVRs6xCTrf1yirs9a4j4Y27nn7SRfO6v67XsQ==",
+      "dev": true,
+      "requires": {
+        "commander": "~2.13.0",
+        "source-map": "~0.6.1"
+      }
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     "yallist": {
       "version": "4.0.0",
diff --git a/package.json b/package.json
index 0e5530ea6..f276a4eb1 100644
--- a/package.json
+++ b/package.json
@@ -2,7 +2,7 @@
   "name": "gopherjs",
   "license": "BSD-2-Clause",
   "devDependencies": {
-    "uglify-js": "^3.13.0"
+    "uglify-es": "^3.3.9"
   },
   "dependencies": {
     "source-map-support": "^0.5.19"