diff --git a/package-lock.json b/package-lock.json
index 087c30b..81c9b3b 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,59 +1,38 @@
 {
     "name": "dascript",
-    "version": "0.0.10",
+    "version": "0.0.12",
     "lockfileVersion": 3,
     "requires": true,
     "packages": {
         "": {
             "name": "dascript",
-            "version": "0.0.10",
+            "version": "0.0.12",
             "devDependencies": {
-                "js-yaml": "^3.13.1"
+                "js-yaml": "^4.1.1"
             },
             "engines": {
                 "vscode": "^1.40.0"
             }
         },
         "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"
-            }
-        },
-        "node_modules/esprima": {
-            "version": "4.0.1",
-            "resolved": "https://registry.npmjs.org/esprima/-/esprima-4.0.1.tgz",
-            "integrity": "sha512-eGuFFw7Upda+g4p+QHvnW0RyTX/SVeJBDM/gCtMARO0cLuT2HcEKnTPvhjV6aGeqrCB/sbNop0Kszm0jsaWU4A==",
-            "dev": true,
-            "bin": {
-                "esparse": "bin/esparse.js",
-                "esvalidate": "bin/esvalidate.js"
-            },
-            "engines": {
-                "node": ">=4"
-            }
+            "license": "Python-2.0"
         },
         "node_modules/js-yaml": {
-            "version": "3.13.1",
-            "resolved": "https://registry.npmjs.org/js-yaml/-/js-yaml-3.13.1.tgz",
-            "integrity": "sha512-YfbcO7jXDdyj0DGxYVSlSeQNHbD7XPWvrVWeVUujrQEoZzWJIRrCPoyk6kL6IAjAG2IolMK4T0hNUe0HOUs5Jw==",
+            "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"
             }
-        },
-        "node_modules/sprintf-js": {
-            "version": "1.0.3",
-            "resolved": "https://registry.npmjs.org/sprintf-js/-/sprintf-js-1.0.3.tgz",
-            "integrity": "sha1-BOaSb2YolTVPPdAVIDYzuFcpfiw=",
-            "dev": true
         }
     }
 }
diff --git a/package.json b/package.json
index 0a2d4a4..c7ed959 100644
--- a/package.json
+++ b/package.json
@@ -38,6 +38,6 @@
         ]
     },
     "devDependencies": {
-        "js-yaml": "^3.13.1"
+        "js-yaml": "^4.1.1"
     }
 }