diff --git a/package-lock.json b/package-lock.json
index c38ad9f1cf12a..40180d7d3e612 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -259,9 +259,9 @@
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-        "clean-css": "^4.2.3",
-        "commander": "^4.1.1",
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+        "clean-css": "^5.1.5",
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-        "terser": "^4.6.3"
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@@ -1482,9 +1482,9 @@
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@@ -1578,13 +1578,13 @@
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+      "resolved": "https://registry.npmjs.org/terser/-/terser-5.9.0.tgz",
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-        "source-map": "~0.6.1",
-        "source-map-support": "~0.5.12"
+        "source-map": "~0.7.2",
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@@ -1593,9 +1593,9 @@
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+          "version": "0.7.3",
+          "resolved": "https://registry.npmjs.org/source-map/-/source-map-0.7.3.tgz",
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@@ -1639,9 +1639,9 @@
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-      "resolved": "https://registry.npmjs.org/tslib/-/tslib-2.3.0.tgz",
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+      "version": "2.3.1",
+      "resolved": "https://registry.npmjs.org/tslib/-/tslib-2.3.1.tgz",
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diff --git a/package.json b/package.json
index 1192c5e0b58f1..5212a25cc3900 100644
--- a/package.json
+++ b/package.json
@@ -10,7 +10,7 @@
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-    "html-minifier-terser": "5.1.1",
+    "html-minifier-terser": "6.0.2",
     "wasm2c": "1.0.0"
   },
   "scripts": {
diff --git a/tests/code_size/random_printf_wasm2js.json b/tests/code_size/random_printf_wasm2js.json
index 84577feedc0b6..6cd13a837388b 100644
--- a/tests/code_size/random_printf_wasm2js.json
+++ b/tests/code_size/random_printf_wasm2js.json
@@ -1,6 +1,6 @@
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