diff --git a/llvm/utils/vscode/llvm/package-lock.json b/llvm/utils/vscode/llvm/package-lock.json
index 9559768c1919..9025982afa7a 100644
--- a/llvm/utils/vscode/llvm/package-lock.json
+++ b/llvm/utils/vscode/llvm/package-lock.json
@@ -10,7 +10,7 @@
             "devDependencies": {
                 "@types/node": "^8.10.59",
                 "@types/vscode": "^1.39.0",
-                "js-yaml": "^3.13.1",
+                "js-yaml": "^4.1.1",
                 "tslint": "^5.16.0",
                 "typescript": "^3.8.3"
             },
@@ -78,13 +78,11 @@
             }
         },
         "node_modules/argparse": {
-            "version": "1.0.10",
-            "resolved": "https://registry.npmjs.org/argparse/-/argparse-1.0.10.tgz",
-            "integrity": "sha512-o5Roy6tNG4SL/FOkCAN6RzjiakZS25RLYFrcMttJqbdd8BWrnA+fGz57iN5Pb06pvBGvl5gQ0B48dJlslXvoTg==",
+            "version": "2.0.1",
+            "resolved": "https://registry.npmjs.org/argparse/-/argparse-2.0.1.tgz",
+            "integrity": "sha512-8+9WqebbFzpX9OR+Wa6O29asIogeRMzcGtAINdpMHHyAg10f05aSFVBbcEqGf/PXw1EjAZ+q2/bEBg3DvurK3Q==",
             "dev": true,
-            "dependencies": {
-                "sprintf-js": "~1.0.2"
-            }
+            "license": "Python-2.0"
         },
         "node_modules/balanced-match": {
             "version": "1.0.2",
@@ -175,6 +173,7 @@
             "resolved": "https://registry.npmjs.org/esprima/-/esprima-4.0.1.tgz",
             "integrity": "sha512-eGuFFw7Upda+g4p+QHvnW0RyTX/SVeJBDM/gCtMARO0cLuT2HcEKnTPvhjV6aGeqrCB/sbNop0Kszm0jsaWU4A==",
             "dev": true,
+            "license": "BSD-2-Clause",
             "bin": {
                 "esparse": "bin/esparse.js",
                 "esvalidate": "bin/esvalidate.js"
@@ -271,13 +270,13 @@
             "dev": true
         },
         "node_modules/js-yaml": {
-            "version": "3.14.1",
-            "resolved": "https://registry.npmjs.org/js-yaml/-/js-yaml-3.14.1.tgz",
-            "integrity": "sha512-okMH7OXXJ7YrN9Ok3/SXrnu4iX9yOk+25nqX4imS2npuvTYDmo/QEZoqwZkYaIDk3jVvBOTOIEgEhaLOynBS9g==",
+            "version": "4.1.1",
+            "resolved": "https://registry.npmjs.org/js-yaml/-/js-yaml-4.1.1.tgz",
+            "integrity": "sha512-qQKT4zQxXl8lLwBtHMWwaTcGfFOZviOJet3Oy/xmGk2gZH677CJM9EvtfdSkgWcATZhj/55JZ0rmy3myCT5lsA==",
             "dev": true,
+            "license": "MIT",
             "dependencies": {
-                "argparse": "^1.0.7",
-                "esprima": "^4.0.0"
+                "argparse": "^2.0.1"
             },
             "bin": {
                 "js-yaml": "bin/js-yaml.js"
@@ -370,7 +369,8 @@
             "version": "1.0.3",
             "resolved": "https://registry.npmjs.org/sprintf-js/-/sprintf-js-1.0.3.tgz",
             "integrity": "sha512-D9cPgkvLlV3t3IzL0D0YLvGA9Ahk4PcvVwUbN0dSGr1aP0Nrt4AEnTUbuGvquEC0mA64Gqt1fzirlRs5ibXx8g==",
-            "dev": true
+            "dev": true,
+            "license": "BSD-3-Clause"
         },
         "node_modules/supports-color": {
             "version": "5.5.0",
@@ -432,6 +432,30 @@
                 "typescript": ">=2.3.0-dev || >=2.4.0-dev || >=2.5.0-dev || >=2.6.0-dev || >=2.7.0-dev || >=2.8.0-dev || >=2.9.0-dev || >=3.0.0-dev || >= 3.1.0-dev || >= 3.2.0-dev"
             }
         },
+        "node_modules/tslint/node_modules/argparse": {
+            "version": "1.0.10",
+            "resolved": "https://registry.npmjs.org/argparse/-/argparse-1.0.10.tgz",
+            "integrity": "sha512-o5Roy6tNG4SL/FOkCAN6RzjiakZS25RLYFrcMttJqbdd8BWrnA+fGz57iN5Pb06pvBGvl5gQ0B48dJlslXvoTg==",
+            "dev": true,
+            "license": "MIT",
+            "dependencies": {
+                "sprintf-js": "~1.0.2"
+            }
+        },
+        "node_modules/tslint/node_modules/js-yaml": {
+            "version": "3.14.2",
+            "resolved": "https://registry.npmjs.org/js-yaml/-/js-yaml-3.14.2.tgz",
+            "integrity": "sha512-PMSmkqxr106Xa156c2M265Z+FTrPl+oxd/rgOQy2tijQeK5TxQ43psO1ZCwhVOSdnn+RzkzlRz/eY4BgJBYVpg==",
+            "dev": true,
+            "license": "MIT",
+            "dependencies": {
+                "argparse": "^1.0.7",
+                "esprima": "^4.0.0"
+            },
+            "bin": {
+                "js-yaml": "bin/js-yaml.js"
+            }
+        },
         "node_modules/tsutils": {
             "version": "2.29.0",
             "resolved": "https://registry.npmjs.org/tsutils/-/tsutils-2.29.0.tgz",
diff --git a/llvm/utils/vscode/llvm/package.json b/llvm/utils/vscode/llvm/package.json
index fbee74954cbb..fbd564c00877 100644
--- a/llvm/utils/vscode/llvm/package.json
+++ b/llvm/utils/vscode/llvm/package.json
@@ -110,7 +110,7 @@
     "devDependencies": {
         "@types/node": "^8.10.59",
         "@types/vscode": "^1.39.0",
-        "js-yaml": "^3.13.1",
+        "js-yaml": "^4.1.1",
         "tslint": "^5.16.0",
         "typescript": "^3.8.3"
     },