diff --git a/docx-wasm/package.json b/docx-wasm/package.json
index f75bba9..3db35f7 100644
--- a/docx-wasm/package.json
+++ b/docx-wasm/package.json
@@ -24,7 +24,7 @@
   },
   "devDependencies": {
     "@types/file-saver": "2.0.1",
-    "@wasm-tool/wasm-pack-plugin": "1.3.3",
+    "@wasm-tool/wasm-pack-plugin": "1.4.0",
     "adm-zip": "0.5.1",
     "cpy-cli": "3.1.1",
     "file-saver": "2.0.5",
diff --git a/docx-wasm/yarn.lock b/docx-wasm/yarn.lock
index be11a39..d91d4fc 100644
--- a/docx-wasm/yarn.lock
+++ b/docx-wasm/yarn.lock
@@ -660,10 +660,10 @@
   dependencies:
     "@types/yargs-parser" "*"
 
-"@wasm-tool/wasm-pack-plugin@1.3.3":
-  version "1.3.3"
-  resolved "https://registry.yarnpkg.com/@wasm-tool/wasm-pack-plugin/-/wasm-pack-plugin-1.3.3.tgz#682b07205929e98ef6766715a3c0594fc41d8482"
-  integrity sha512-CJuluHW6JbUJoNfHj1VGZj11IS4mPK8gMmfW+/EPNViFnrzcHt6a9csG+BTyh0lw4gnzME4/nzAM7ZEiRYTUfw==
+"@wasm-tool/wasm-pack-plugin@1.4.0":
+  version "1.4.0"
+  resolved "https://registry.yarnpkg.com/@wasm-tool/wasm-pack-plugin/-/wasm-pack-plugin-1.4.0.tgz#752e4a6d8fe35477a3c6cafd2ac6b0351f692848"
+  integrity sha512-zQh0gA7E73dgwhUM9sXX2rsaXsdWUIdK1kMlEhds3oi6ASn+ePxhb/quZweoeo0SjxuETVb0iu+/nxUZ5HxsUQ==
   dependencies:
     chalk "^2.4.1"
     command-exists "^1.2.7"