diff --git a/package-lock.json b/package-lock.json
index 7ea53dc..893237a 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1342,6 +1342,7 @@
       "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"
       }
@@ -6595,6 +6596,7 @@
       "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"
@@ -6603,7 +6605,8 @@
         "esprima": {
           "version": "4.0.1",
           "resolved": "https://registry.npmjs.org/esprima/-/esprima-4.0.1.tgz",
-          "integrity": "sha512-eGuFFw7Upda+g4p+QHvnW0RyTX/SVeJBDM/gCtMARO0cLuT2HcEKnTPvhjV6aGeqrCB/sbNop0Kszm0jsaWU4A=="
+          "integrity": "sha512-eGuFFw7Upda+g4p+QHvnW0RyTX/SVeJBDM/gCtMARO0cLuT2HcEKnTPvhjV6aGeqrCB/sbNop0Kszm0jsaWU4A==",
+          "dev": true
         }
       }
     },
@@ -9032,7 +9035,8 @@
     "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
     },
     "sshpk": {
       "version": "1.16.1",
diff --git a/package.json b/package.json
index 55ffad8..f5aabd8 100644
--- a/package.json
+++ b/package.json
@@ -10,7 +10,6 @@
     "ejs": "^2.6.2",
     "express": "^4.17.1",
     "fa-diagrams": "^1.0.3",
-    "js-yaml": "^3.13.1",
     "mathjax-node": "^2.1.1",
     "ncp": "^2.0.0",
     "node-prismjs": "^0.1.2",
diff --git a/test/renderer.test.js b/test/renderer.test.js
index 953cff0..3af15aa 100644
--- a/test/renderer.test.js
+++ b/test/renderer.test.js
@@ -258,7 +258,7 @@ describe('Test fa-diagrams', () => {
       done();
     });
   });
-  test('invalid yaml', (done) => {
+  test('invalid toml', (done) => {
     renderer.renderFaDiagrams('before\n@startfad\noptions.rendering.color=red\n@endfad\nafter', (data) => {
       expect(data).toBe('before\n<b style="color:red">TomlError: Unexpected character, expecting string, number, datetime, boolean, inline array or inline table at row 1, col 26, pos 25:\n' +
         '1> options.rendering.color=red\n' +