diff --git a/app/assets/javascripts/discourse/package.json b/app/assets/javascripts/discourse/package.json
index 56818ae86d9..4061129d08f 100644
--- a/app/assets/javascripts/discourse/package.json
+++ b/app/assets/javascripts/discourse/package.json
@@ -91,7 +91,7 @@
     "select-kit": "1.0.0",
     "sinon": "^14.0.2",
     "source-map": "^0.7.4",
-    "terser": "5.10.0",
+    "terser": "^5.15.1",
     "tippy.js": "^6.3.7",
     "util": "^0.12.5",
     "virtual-dom": "^2.1.1",
diff --git a/app/assets/javascripts/yarn.lock b/app/assets/javascripts/yarn.lock
index 7487089b0b8..92800fb50ce 100644
--- a/app/assets/javascripts/yarn.lock
+++ b/app/assets/javascripts/yarn.lock
@@ -1281,7 +1281,7 @@
     "@jridgewell/set-array" "^1.0.0"
     "@jridgewell/sourcemap-codec" "^1.4.10"
 
-"@jridgewell/gen-mapping@^0.3.2":
+"@jridgewell/gen-mapping@^0.3.0", "@jridgewell/gen-mapping@^0.3.2":
   version "0.3.2"
   resolved "https://registry.yarnpkg.com/@jridgewell/gen-mapping/-/gen-mapping-0.3.2.tgz#c1aedc61e853f2bb9f5dfe6d4442d3b565b253b9"
   integrity sha512-mh65xKQAzI6iBcFzwv28KVWSmCkdRBWoOh+bYQGW3+6OZvbbN3TqMGo5hqYxQniRcH9F2VZIoJCm4pa3BPDK/A==
@@ -1300,6 +1300,14 @@
   resolved "https://registry.yarnpkg.com/@jridgewell/set-array/-/set-array-1.1.2.tgz#7c6cf998d6d20b914c0a55a91ae928ff25965e72"
   integrity sha512-xnkseuNADM0gt2bs+BvhO0p78Mk762YnZdsuzFV018NoG1Sj1SCQvpSqa7XUaTam5vAGasABV9qXASMKnFMwMw==
 
+"@jridgewell/source-map@^0.3.2":
+  version "0.3.2"
+  resolved "https://registry.yarnpkg.com/@jridgewell/source-map/-/source-map-0.3.2.tgz#f45351aaed4527a298512ec72f81040c998580fb"
+  integrity sha512-m7O9o2uR8k2ObDysZYzdfhb08VuEml5oWGiosa1VdaPZ/A6QyPkAJuwN0Q1lhULOf6B7MtQmHENS743hWtCrgw==
+  dependencies:
+    "@jridgewell/gen-mapping" "^0.3.0"
+    "@jridgewell/trace-mapping" "^0.3.9"
+
 "@jridgewell/sourcemap-codec@^1.4.10":
   version "1.4.13"
   resolved "https://registry.yarnpkg.com/@jridgewell/sourcemap-codec/-/sourcemap-codec-1.4.13.tgz#b6461fb0c2964356c469e115f504c95ad97ab88c"
@@ -1803,7 +1811,7 @@ acorn-walk@^8.0.2:
   resolved "https://registry.yarnpkg.com/acorn-walk/-/acorn-walk-8.2.0.tgz#741210f2e2426454508853a2f44d0ab83b7f69c1"
   integrity sha512-k+iyHEuPgSw6SbuDpGQM+06HQUa04DZ3o+F6CSzXMvvI5KMvnaEqXe+YVe555R9nn6GPt404fos4wcgpw12SDA==
 
-acorn@^8.1.0, acorn@^8.7.1, acorn@^8.8.0, acorn@^8.8.1:
+acorn@^8.1.0, acorn@^8.5.0, acorn@^8.7.1, acorn@^8.8.0, acorn@^8.8.1:
   version "8.8.1"
   resolved "https://registry.yarnpkg.com/acorn/-/acorn-8.8.1.tgz#0a3f9cbecc4ec3bea6f0a80b66ae8dd2da250b73"
   integrity sha512-7zFpHzhnqYKrkYdUjF1HI1bzd0VygEGX8lFk4k5zVMqHEoES+P+7TKI+EvLO9WVMJ8eekdO0aDEK044xTXwPPA==
@@ -3350,9 +3358,9 @@ cookie@0.5.0:
   integrity sha512-YZ3GUyn/o8gfKJlnlX7g7xq4gyO6OSuhGPKaaGssGB2qgDUS0gPgtTvoyZLTt9Ab6dC4hfc9dV5arkvc/OCmrw==
 
 cookie@~0.4.1:
-  version "0.4.2"
-  resolved "https://registry.yarnpkg.com/cookie/-/cookie-0.4.2.tgz#0e41f24de5ecf317947c82fc789e06a884824432"
-  integrity sha512-aSWTXFzaKWkvHO1Ny/s+ePFpvKsPnjc551iI41v3ny/ow6tBG5Vd+FuqGNhh1LxOmVzOlGUriIlOaokOvhaStA==
+  version "0.4.1"
+  resolved "https://registry.yarnpkg.com/cookie/-/cookie-0.4.1.tgz#afd713fe26ebd21ba95ceb61f9a8116e50a537d1"
+  integrity sha512-ZwrFkGJxUR3EIoXtO+yVE69Eb7KlixbaeAWfBQB9vVsNn/o+Yw69gBWSSDK825hQNdN+wF8zELf3dFNl/kxkUA==
 
 copy-dereference@^1.0.0:
   version "1.0.0"
@@ -4324,9 +4332,9 @@ engine.io-parser@~5.0.3:
   integrity sha512-+nVFp+5z1E3HcToEnO7ZIj3g+3k9389DvWtvJZz0T6/eOCPIyyxehFcedoYrZQrp0LgQbD9pPXhpMBKMd5QURg==
 
 engine.io@~6.2.0:
-  version "6.2.1"
-  resolved "https://registry.yarnpkg.com/engine.io/-/engine.io-6.2.1.tgz#e3f7826ebc4140db9bbaa9021ad6b1efb175878f"
-  integrity sha512-ECceEFcAaNRybd3lsGQKas3ZlMVjN3cyWwMP25D2i0zWfyiytVbTpRPa34qrr+FHddtpBVOmq4H/DCv1O0lZRA==
+  version "6.2.0"
+  resolved "https://registry.yarnpkg.com/engine.io/-/engine.io-6.2.0.tgz#003bec48f6815926f2b1b17873e576acd54f41d0"
+  integrity sha512-4KzwW3F3bk+KlzSOY57fj/Jx6LyRQ1nbcyIadehl+AnXjKT7gDO0ORdRi/84ixvMKTym6ZKuxvbzN62HDDU1Lg==
   dependencies:
     "@types/cookie" "^0.4.1"
     "@types/cors" "^2.8.12"
@@ -8523,7 +8531,7 @@ source-map@^0.6.0, source-map@^0.6.1, source-map@~0.6.1:
   resolved "https://registry.yarnpkg.com/source-map/-/source-map-0.6.1.tgz#74722af32e9614e9c287a8d0bbde48b5e2f1a263"
   integrity sha512-UjgapumWlbMhkBgzT7Ykc5YXUT46F0iKu8SGXq0bcwP5dz/h0Plj6enJqjz1Zbq2l5WaqYnrVbwWOWMyF3F47g==
 
-source-map@^0.7.4, source-map@~0.7.2:
+source-map@^0.7.4:
   version "0.7.4"
   resolved "https://registry.yarnpkg.com/source-map/-/source-map-0.7.4.tgz#a9bbe705c9d8846f4e08ff6765acf0f1b0898656"
   integrity sha512-l3BikUxvPOcn5E74dZiq5BGsTb5yEwhaTSzccU6t4sDOH8NWJCstKO5QT2CvtFoK6F0saL7p9xHAqHOlCPJygA==
@@ -8835,13 +8843,14 @@ terser-webpack-plugin@^5.1.3:
     source-map "^0.6.1"
     terser "^5.7.2"
 
-terser@5.10.0, terser@^5.3.0, terser@^5.7.2:
-  version "5.10.0"
-  resolved "https://registry.yarnpkg.com/terser/-/terser-5.10.0.tgz#b86390809c0389105eb0a0b62397563096ddafcc"
-  integrity sha512-AMmF99DMfEDiRJfxfY5jj5wNH/bYO09cniSqhfoyxc8sFoYIgkJy86G04UoZU5VjlpnplVu0K6Tx6E9b5+DlHA==
+terser@^5.15.1, terser@^5.3.0, terser@^5.7.2:
+  version "5.15.1"
+  resolved "https://registry.yarnpkg.com/terser/-/terser-5.15.1.tgz#8561af6e0fd6d839669c73b92bdd5777d870ed6c"
+  integrity sha512-K1faMUvpm/FBxjBXud0LWVAGxmvoPbZbfTCYbSgaaYQaIXI3/TdI7a7ZGA73Zrou6Q8Zmz3oeUTsp/dj+ag2Xw==
   dependencies:
+    "@jridgewell/source-map" "^0.3.2"
+    acorn "^8.5.0"
     commander "^2.20.0"
-    source-map "~0.7.2"
     source-map-support "~0.5.20"
 
 testem@^3.2.0:
diff --git a/spec/lib/discourse_js_processor_spec.rb b/spec/lib/discourse_js_processor_spec.rb
index b1f5dc031aa..df4c288a537 100644
--- a/spec/lib/discourse_js_processor_spec.rb
+++ b/spec/lib/discourse_js_processor_spec.rb
@@ -192,7 +192,7 @@ RSpec.describe DiscourseJsProcessor do
       }
 
       result = DiscourseJsProcessor::Transpiler.new.terser(sources, { sourceMap: { includeSources: true } })
-      expect(result.keys).to contain_exactly("code", "map")
+      expect(result.keys).to contain_exactly("code", "decoded_map", "map")
 
       begin
         # Check the code still works