diff --git a/package-lock.json b/package-lock.json
index d9e55d3..a0960ca 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -24,7 +24,7 @@
         "open": "^8.4.0",
         "open-in-editor": "^2.2.0",
         "temp-dir": "^2.0.0",
-        "yaml-cfn": "^0.2.3"
+        "yaml-cfn": "^0.3.2"
       },
       "bin": {
         "cfn-dia": "index.js",
@@ -1408,6 +1408,7 @@
       "version": "1.0.10",
       "resolved": "https://registry.npmjs.org/argparse/-/argparse-1.0.10.tgz",
       "integrity": "sha512-o5Roy6tNG4SL/FOkCAN6RzjiakZS25RLYFrcMttJqbdd8BWrnA+fGz57iN5Pb06pvBGvl5gQ0B48dJlslXvoTg==",
+      "dev": true,
       "dependencies": {
         "sprintf-js": "~1.0.2"
       }
@@ -3560,6 +3561,7 @@
       "version": "3.13.1",
       "resolved": "https://registry.npmjs.org/js-yaml/-/js-yaml-3.13.1.tgz",
       "integrity": "sha512-YfbcO7jXDdyj0DGxYVSlSeQNHbD7XPWvrVWeVUujrQEoZzWJIRrCPoyk6kL6IAjAG2IolMK4T0hNUe0HOUs5Jw==",
+      "dev": true,
       "dependencies": {
         "argparse": "^1.0.7",
         "esprima": "^4.0.0"
@@ -4467,7 +4469,8 @@
     "node_modules/sprintf-js": {
       "version": "1.0.3",
       "resolved": "https://registry.npmjs.org/sprintf-js/-/sprintf-js-1.0.3.tgz",
-      "integrity": "sha1-BOaSb2YolTVPPdAVIDYzuFcpfiw="
+      "integrity": "sha1-BOaSb2YolTVPPdAVIDYzuFcpfiw=",
+      "dev": true
     },
     "node_modules/stack-utils": {
       "version": "2.0.5",
@@ -5015,16 +5018,32 @@
       "dev": true
     },
     "node_modules/yaml-cfn": {
-      "version": "0.2.3",
-      "resolved": "https://registry.npmjs.org/yaml-cfn/-/yaml-cfn-0.2.3.tgz",
-      "integrity": "sha512-cCeX3mGhQdQJR1gdq2hJloXMh+Fkeq86Q0hyPs7UjBhaXwHYJJ+S+CbW+Fkm1FHXGhtUhcavnA+RM9ulLn6lOg==",
+      "version": "0.3.2",
+      "resolved": "https://registry.npmjs.org/yaml-cfn/-/yaml-cfn-0.3.2.tgz",
+      "integrity": "sha512-MvrWhv40GKWHFGCliTGGAMwAeqIXf/bzf6WW48+xND9iMp8cTj0R8xkwM0lX/GzNN/EZKr5gP4Hx63Fn+sICoA==",
       "dependencies": {
-        "js-yaml": "^3.10.0"
+        "js-yaml": "^4.0.0"
       },
       "bin": {
         "yaml-cfn": "cli.js"
       }
     },
+    "node_modules/yaml-cfn/node_modules/argparse": {
+      "version": "2.0.1",
+      "resolved": "https://registry.npmjs.org/argparse/-/argparse-2.0.1.tgz",
+      "integrity": "sha512-8+9WqebbFzpX9OR+Wa6O29asIogeRMzcGtAINdpMHHyAg10f05aSFVBbcEqGf/PXw1EjAZ+q2/bEBg3DvurK3Q=="
+    },
+    "node_modules/yaml-cfn/node_modules/js-yaml": {
+      "version": "4.1.0",
+      "resolved": "https://registry.npmjs.org/js-yaml/-/js-yaml-4.1.0.tgz",
+      "integrity": "sha512-wpxZs9NoxZaJESJGIZTyDEaYpl0FKSA+FB9aJiyemKhMwkxQg63h4T1KJgUGHpTqPDNRcmmYLugrRjJlBtWvRA==",
+      "dependencies": {
+        "argparse": "^2.0.1"
+      },
+      "bin": {
+        "js-yaml": "bin/js-yaml.js"
+      }
+    },
     "node_modules/yargs": {
       "version": "16.2.0",
       "resolved": "https://registry.npmjs.org/yargs/-/yargs-16.2.0.tgz",
@@ -6115,6 +6134,7 @@
       "version": "1.0.10",
       "resolved": "https://registry.npmjs.org/argparse/-/argparse-1.0.10.tgz",
       "integrity": "sha512-o5Roy6tNG4SL/FOkCAN6RzjiakZS25RLYFrcMttJqbdd8BWrnA+fGz57iN5Pb06pvBGvl5gQ0B48dJlslXvoTg==",
+      "dev": true,
       "requires": {
         "sprintf-js": "~1.0.2"
       }
@@ -7771,6 +7791,7 @@
       "version": "3.13.1",
       "resolved": "https://registry.npmjs.org/js-yaml/-/js-yaml-3.13.1.tgz",
       "integrity": "sha512-YfbcO7jXDdyj0DGxYVSlSeQNHbD7XPWvrVWeVUujrQEoZzWJIRrCPoyk6kL6IAjAG2IolMK4T0hNUe0HOUs5Jw==",
+      "dev": true,
       "requires": {
         "argparse": "^1.0.7",
         "esprima": "^4.0.0"
@@ -8459,7 +8480,8 @@
     "sprintf-js": {
       "version": "1.0.3",
       "resolved": "https://registry.npmjs.org/sprintf-js/-/sprintf-js-1.0.3.tgz",
-      "integrity": "sha1-BOaSb2YolTVPPdAVIDYzuFcpfiw="
+      "integrity": "sha1-BOaSb2YolTVPPdAVIDYzuFcpfiw=",
+      "dev": true
     },
     "stack-utils": {
       "version": "2.0.5",
@@ -8885,11 +8907,26 @@
       "dev": true
     },
     "yaml-cfn": {
-      "version": "0.2.3",
-      "resolved": "https://registry.npmjs.org/yaml-cfn/-/yaml-cfn-0.2.3.tgz",
-      "integrity": "sha512-cCeX3mGhQdQJR1gdq2hJloXMh+Fkeq86Q0hyPs7UjBhaXwHYJJ+S+CbW+Fkm1FHXGhtUhcavnA+RM9ulLn6lOg==",
+      "version": "0.3.2",
+      "resolved": "https://registry.npmjs.org/yaml-cfn/-/yaml-cfn-0.3.2.tgz",
+      "integrity": "sha512-MvrWhv40GKWHFGCliTGGAMwAeqIXf/bzf6WW48+xND9iMp8cTj0R8xkwM0lX/GzNN/EZKr5gP4Hx63Fn+sICoA==",
       "requires": {
-        "js-yaml": "^3.10.0"
+        "js-yaml": "^4.0.0"
+      },
+      "dependencies": {
+        "argparse": {
+          "version": "2.0.1",
+          "resolved": "https://registry.npmjs.org/argparse/-/argparse-2.0.1.tgz",
+          "integrity": "sha512-8+9WqebbFzpX9OR+Wa6O29asIogeRMzcGtAINdpMHHyAg10f05aSFVBbcEqGf/PXw1EjAZ+q2/bEBg3DvurK3Q=="
+        },
+        "js-yaml": {
+          "version": "4.1.0",
+          "resolved": "https://registry.npmjs.org/js-yaml/-/js-yaml-4.1.0.tgz",
+          "integrity": "sha512-wpxZs9NoxZaJESJGIZTyDEaYpl0FKSA+FB9aJiyemKhMwkxQg63h4T1KJgUGHpTqPDNRcmmYLugrRjJlBtWvRA==",
+          "requires": {
+            "argparse": "^2.0.1"
+          }
+        }
       }
     },
     "yargs": {
diff --git a/package.json b/package.json
index b2e73b5..dd1ad71 100644
--- a/package.json
+++ b/package.json
@@ -31,7 +31,7 @@
     "open": "^8.4.0",
     "open-in-editor": "^2.2.0",
     "temp-dir": "^2.0.0",
-    "yaml-cfn": "^0.2.3"
+    "yaml-cfn": "^0.3.2"
   },
   "devDependencies": {
     "@aws-cdk/core": "^1.87.1",