diff --git a/app/assets/javascripts/discourse/package.json b/app/assets/javascripts/discourse/package.json
index 16a2fa2ab64..e82abd91f49 100644
--- a/app/assets/javascripts/discourse/package.json
+++ b/app/assets/javascripts/discourse/package.json
@@ -130,7 +130,7 @@
     "select-kit": "workspace:1.0.0",
     "sinon": "^19.0.2",
     "source-map": "^0.7.4",
-    "terser": "^5.38.2",
+    "terser": "^5.39.0",
     "testem": "^3.15.2",
     "truth-helpers": "workspace:1.0.0",
     "util": "^0.12.5",
diff --git a/app/assets/javascripts/theme-transpiler/package.json b/app/assets/javascripts/theme-transpiler/package.json
index 8f89f767cf2..32022b7a79b 100644
--- a/app/assets/javascripts/theme-transpiler/package.json
+++ b/app/assets/javascripts/theme-transpiler/package.json
@@ -20,7 +20,7 @@
     "handlebars": "^4.7.8",
     "path-browserify": "^1.0.1",
     "polyfill-crypto.getrandomvalues": "^1.0.0",
-    "terser": "^5.38.2"
+    "terser": "^5.39.0"
   },
   "engines": {
     "node": ">= 18",
diff --git a/package.json b/package.json
index 8c7b848ef9d..174a0152169 100644
--- a/package.json
+++ b/package.json
@@ -39,7 +39,7 @@
     "stylelint": "^16.14.1",
     "stylelint-config-standard": "^37.0.0",
     "stylelint-config-standard-scss": "^14.0.0",
-    "terser": "^5.38.2",
+    "terser": "^5.39.0",
     "typescript": "5.6.x"
   },
   "scripts": {
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index c11c74d82f3..06d9e1c9684 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -134,8 +134,8 @@ importers:
         specifier: ^14.0.0
         version: 14.0.0(postcss@8.5.1)(stylelint@16.14.1(typescript@5.6.3))
       terser:
-        specifier: ^5.38.2
-        version: 5.38.2
+        specifier: ^5.39.0
+        version: 5.39.0
       typescript:
         specifier: 5.6.x
         version: 5.6.3
@@ -613,8 +613,8 @@ importers:
         specifier: ^0.7.4
         version: 0.7.4
       terser:
-        specifier: ^5.38.2
-        version: 5.38.2
+        specifier: ^5.39.0
+        version: 5.39.0
       testem:
         specifier: ^3.15.2
         version: 3.15.2(handlebars@4.7.8)(underscore@1.13.6)
@@ -1055,8 +1055,8 @@ importers:
         specifier: ^1.0.0
         version: 1.0.0
       terser:
-        specifier: ^5.38.2
-        version: 5.38.2
+        specifier: ^5.39.0
+        version: 5.39.0
 
   app/assets/javascripts/truth-helpers:
     dependencies:
@@ -7949,8 +7949,8 @@ packages:
       uglify-js:
         optional: true
 
-  terser@5.38.2:
-    resolution: {integrity: sha512-w8CXxxbFA5zfNsR/i8HZq5bvn18AK0O9jj7hyo1YqkovLxEFa0uP0LCVGZRqiRaKRFxXhELBp8SteeAjEnfeJg==}
+  terser@5.39.0:
+    resolution: {integrity: sha512-LBAhFyLho16harJoWMg/nZsQYgTrg5jXOn2nCYjRUcZZEdE3qa2zb8QEDRUGVZBW4rlazf2fxkg8tztybTaqWw==}
     engines: {node: '>=10'}
     hasBin: true
 
@@ -9726,7 +9726,7 @@ snapshots:
       source-map-url: 0.4.1
       style-loader: 2.0.0(webpack@5.97.1(@swc/core@1.10.16)(esbuild@0.25.0))
       supports-color: 8.1.1
-      terser: 5.38.2
+      terser: 5.39.0
       thread-loader: 3.0.4(webpack@5.97.1(@swc/core@1.10.16)(esbuild@0.25.0))
       webpack: 5.97.1(@swc/core@1.10.16)(esbuild@0.25.0)
     transitivePeerDependencies:
@@ -11687,7 +11687,7 @@ snapshots:
       lodash.defaultsdeep: 4.6.1
       matcher-collection: 2.0.1
       symlink-or-copy: 1.3.1
-      terser: 5.38.2
+      terser: 5.39.0
       walk-sync: 2.2.0
       workerpool: 6.5.1
     transitivePeerDependencies:
@@ -17160,13 +17160,13 @@ snapshots:
       jest-worker: 27.5.1
       schema-utils: 3.3.0
       serialize-javascript: 6.0.2
-      terser: 5.38.2
+      terser: 5.39.0
       webpack: 5.97.1(@swc/core@1.10.16)(esbuild@0.25.0)
     optionalDependencies:
       '@swc/core': 1.10.16
       esbuild: 0.25.0
 
-  terser@5.38.2:
+  terser@5.39.0:
     dependencies:
       '@jridgewell/source-map': 0.3.6
       acorn: 8.14.0