diff --git a/ace-loader/package-lock.json b/ace-loader/package-lock.json
index b99c8fd314ced3e99ce9352325e5f38d1f82223a..caec7ab514d002437265086a4b7cfae568b73fb2 100644
--- a/ace-loader/package-lock.json
+++ b/ace-loader/package-lock.json
@@ -2563,9 +2563,9 @@
       "dev": true
     },
     "deccjsunit": {
-      "version": "1.0.4",
-      "resolved": "https://registry.npmmirror.com/deccjsunit/download/deccjsunit-1.0.4.tgz?cache=0&sync_timestamp=1633677367443&other_urls=https%3A%2F%2Fregistry.npmmirror.com%2Fdeccjsunit%2Fdownload%2Fdeccjsunit-1.0.4.tgz",
-      "integrity": "sha1-3rxuTBf46KBVtONr81JQnC/KKqQ="
+      "version": "1.0.3",
+      "resolved": "https://registry.nlark.com/deccjsunit/download/deccjsunit-1.0.3.tgz",
+      "integrity": "sha1-AcMxIKje4SsaoQiZGE14pszfiKI="
     },
     "decode-uri-component": {
       "version": "0.2.0",
diff --git a/ace-loader/package.json b/ace-loader/package.json
index 0b3ab4053b356fbe4f766df1deb55b9545282bd0..207a57b1498873ae7339c1748bdf50bcf111e63a 100644
--- a/ace-loader/package.json
+++ b/ace-loader/package.json
@@ -38,7 +38,7 @@
     "copy-webpack-plugin": "^8.1.0",
     "css": "^3.0.0",
     "css-loader": "^3.4.2",
-    "deccjsunit": "latest",
+    "deccjsunit": "1.0.3",
     "escodegen": "^2.0.0",
     "esprima": "^4.0.1",
     "hash-sum": "^1.0.2",