diff --git a/package-lock.json b/package-lock.json
index 77a8a1f..8b4fc66 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -53,6 +53,7 @@
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       "integrity": "sha1-DNkKVhCT810KmSVsIrcGlDP60Rc=",
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@@ -105,11 +106,11 @@
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-      "resolved": "https://registry.npmjs.org/argparse/-/argparse-1.0.9.tgz",
-      "integrity": "sha1-c9g7wmP4bpf4zE9rrhsOkKfSLIY=",
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+      "resolved": "https://registry.npmjs.org/argparse/-/argparse-1.0.10.tgz",
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+        "sprintf-js": "~1.0.2"
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@@ -832,9 +833,9 @@
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-      "resolved": "https://registry.npmjs.org/esprima/-/esprima-4.0.0.tgz",
-      "integrity": "sha512-oftTcaMu/EGrEIu904mWteKIv8vMuOgGYo7EhVJJN00R/EED9DCua/xxHRdYnKtcECzVg7xOWhflvJMnqcFZjw=="
+      "version": "4.0.1",
+      "resolved": "https://registry.npmjs.org/esprima/-/esprima-4.0.1.tgz",
+      "integrity": "sha512-eGuFFw7Upda+g4p+QHvnW0RyTX/SVeJBDM/gCtMARO0cLuT2HcEKnTPvhjV6aGeqrCB/sbNop0Kszm0jsaWU4A=="
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@@ -1194,6 +1195,14 @@
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         "hoek": "4.2.0",
         "sntp": "2.1.0"
+      },
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+          "resolved": "https://registry.npmjs.org/hoek/-/hoek-4.2.0.tgz",
+          "integrity": "sha512-v0XCLxICi9nPfYrS9RL8HbYnXi9obYAeLbSP00BmnZwCK9+Ih9WOjoZ8YoHCoav2csqn4FOz4Orldsy2dmDwmQ==",
+          "dev": true
+        }
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     "hoek": {
@@ -1485,6 +1494,18 @@
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         "mkdirp": "0.5.1",
         "once": "1.4.0"
+      },
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+          "resolved": "https://registry.npmjs.org/js-yaml/-/js-yaml-3.10.0.tgz",
+          "integrity": "sha512-O2v52ffjLa9VeM43J4XocZE//WT9N0IiwDa3KSHH7Tu8CtH+1qM8SIZvnsTh6v+4yFy5KUY3BHUVwjpfAWsjIA==",
+          "dev": true,
+          "requires": {
+            "argparse": "^1.0.7",
+            "esprima": "^4.0.0"
+          }
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     "istanbul-lib-coverage": {
@@ -1915,12 +1936,12 @@
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-      "resolved": "https://registry.npmjs.org/js-yaml/-/js-yaml-3.10.0.tgz",
-      "integrity": "sha512-O2v52ffjLa9VeM43J4XocZE//WT9N0IiwDa3KSHH7Tu8CtH+1qM8SIZvnsTh6v+4yFy5KUY3BHUVwjpfAWsjIA==",
+      "version": "3.13.1",
+      "resolved": "https://registry.npmjs.org/js-yaml/-/js-yaml-3.13.1.tgz",
+      "integrity": "sha512-YfbcO7jXDdyj0DGxYVSlSeQNHbD7XPWvrVWeVUujrQEoZzWJIRrCPoyk6kL6IAjAG2IolMK4T0hNUe0HOUs5Jw==",
       "requires": {
-        "argparse": "1.0.9",
-        "esprima": "4.0.0"
+        "argparse": "^1.0.7",
+        "esprima": "^4.0.0"
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@@ -2104,7 +2125,8 @@
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       "integrity": "sha1-MKCy2jj3N3DoKUoNIuZiXtd9AJc=",
-      "dev": true
+      "dev": true,
+      "optional": true
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@@ -2936,6 +2958,14 @@
       "dev": true,
       "requires": {
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+      },
+      "dependencies": {
+        "hoek": {
+          "version": "4.2.0",
+          "resolved": "https://registry.npmjs.org/hoek/-/hoek-4.2.0.tgz",
+          "integrity": "sha512-v0XCLxICi9nPfYrS9RL8HbYnXi9obYAeLbSP00BmnZwCK9+Ih9WOjoZ8YoHCoav2csqn4FOz4Orldsy2dmDwmQ==",
+          "dev": true
+        }
       }
     },
     "source-map": {
diff --git a/package.json b/package.json
index 7d88c90..fb9d585 100644
--- a/package.json
+++ b/package.json
@@ -25,7 +25,7 @@
   },
   "homepage": "https://github.com/mdatsev/liltea#readme",
   "dependencies": {
-    "js-yaml": "^3.10.0",
+    "js-yaml": "^3.13.1",
     "markdown-table": "^1.1.1",
     "mock-stdin": "^0.3.1",
     "rewire": "^3.0.2"