diff --git a/package-lock.json b/package-lock.json
index d606e7a..855149b 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -19,7 +19,7 @@
         "fast-levenshtein": "*",
         "html-entities": "*",
         "mustache": "*",
-        "mustache-express": "*",
+        "mustache-express": "^1.3.1",
         "nedb": "*",
         "nodemailer": "*",
         "request": "^2.88.0",
@@ -300,9 +300,9 @@
       }
     },
     "node_modules/async": {
-      "version": "3.1.0",
-      "resolved": "https://registry.npmjs.org/async/-/async-3.1.0.tgz",
-      "integrity": "sha512-4vx/aaY6j/j3Lw3fbCHNWP0pPaTCew3F6F3hYyl/tHs/ndmV1q7NW9T5yuJ2XAGwdQrP+6Wu20x06U4APo/iQQ=="
+      "version": "3.2.3",
+      "resolved": "https://registry.npmjs.org/async/-/async-3.2.3.tgz",
+      "integrity": "sha512-spZRyzKL5l5BZQrr/6m/SqFdBN0q3OCI0f9rjfBzCMBIP4p75P620rR3gTmaksNOhmzgdxcaxdNfMy6anrbM0g=="
     },
     "node_modules/asynckit": {
       "version": "0.4.0",
@@ -2250,24 +2250,21 @@
       "integrity": "sha512-sGkPx+VjMtmA6MX27oA4FBFELFCZZ4S4XqeGOXCv68tT+jb3vk/RyaKWP0PTKyWtmLSM0b+adUTEvbs1PEaH2w=="
     },
     "node_modules/mustache": {
-      "version": "3.1.0",
-      "resolved": "https://registry.npmjs.org/mustache/-/mustache-3.1.0.tgz",
-      "integrity": "sha512-3Bxq1R5LBZp7fbFPZzFe5WN4s0q3+gxZaZuZVY+QctYJiCiVgXHOTIC0/HgZuOPFt/6BQcx5u0H2CUOxT/RoGQ==",
+      "version": "4.2.0",
+      "resolved": "https://registry.npmjs.org/mustache/-/mustache-4.2.0.tgz",
+      "integrity": "sha512-71ippSywq5Yb7/tVYyGbkBggbU8H3u5Rz56fH60jGFgr8uHwxs+aSKeqmluIVzM0m0kB7xQjKS6qPfd0b2ZoqQ==",
       "bin": {
         "mustache": "bin/mustache"
-      },
-      "engines": {
-        "npm": ">=1.4.0"
       }
     },
     "node_modules/mustache-express": {
-      "version": "1.3.0",
-      "resolved": "https://registry.npmjs.org/mustache-express/-/mustache-express-1.3.0.tgz",
-      "integrity": "sha512-JWG8Rzxh9tpoLEH0NZ2u/caDiwhIkW+50IOBrcO+lHya3tCYj41bYPDEHCxPbKXvPrSyMNpI6ly4xdU2zpNQtg==",
+      "version": "1.3.1",
+      "resolved": "https://registry.npmjs.org/mustache-express/-/mustache-express-1.3.1.tgz",
+      "integrity": "sha512-RSSzrvM+CVAk9217dkWSNYyl6c2JnesNn6zaZ8+FvZSn8aLxY9l4kTnYqIoiE8GxdLyVQL2ak7XlMZS6t/l8YA==",
       "dependencies": {
-        "async": "~3.1.0",
+        "async": "~3.2.0",
         "lru-cache": "~5.1.1",
-        "mustache": "^3.1.0"
+        "mustache": "^4.2.0"
       },
       "engines": {
         "node": ">= 0.8.0"
@@ -3883,9 +3880,9 @@
       "dev": true
     },
     "async": {
-      "version": "3.1.0",
-      "resolved": "https://registry.npmjs.org/async/-/async-3.1.0.tgz",
-      "integrity": "sha512-4vx/aaY6j/j3Lw3fbCHNWP0pPaTCew3F6F3hYyl/tHs/ndmV1q7NW9T5yuJ2XAGwdQrP+6Wu20x06U4APo/iQQ=="
+      "version": "3.2.3",
+      "resolved": "https://registry.npmjs.org/async/-/async-3.2.3.tgz",
+      "integrity": "sha512-spZRyzKL5l5BZQrr/6m/SqFdBN0q3OCI0f9rjfBzCMBIP4p75P620rR3gTmaksNOhmzgdxcaxdNfMy6anrbM0g=="
     },
     "asynckit": {
       "version": "0.4.0",
@@ -5453,18 +5450,18 @@
       "integrity": "sha512-sGkPx+VjMtmA6MX27oA4FBFELFCZZ4S4XqeGOXCv68tT+jb3vk/RyaKWP0PTKyWtmLSM0b+adUTEvbs1PEaH2w=="
     },
     "mustache": {
-      "version": "3.1.0",
-      "resolved": "https://registry.npmjs.org/mustache/-/mustache-3.1.0.tgz",
-      "integrity": "sha512-3Bxq1R5LBZp7fbFPZzFe5WN4s0q3+gxZaZuZVY+QctYJiCiVgXHOTIC0/HgZuOPFt/6BQcx5u0H2CUOxT/RoGQ=="
+      "version": "4.2.0",
+      "resolved": "https://registry.npmjs.org/mustache/-/mustache-4.2.0.tgz",
+      "integrity": "sha512-71ippSywq5Yb7/tVYyGbkBggbU8H3u5Rz56fH60jGFgr8uHwxs+aSKeqmluIVzM0m0kB7xQjKS6qPfd0b2ZoqQ=="
     },
     "mustache-express": {
-      "version": "1.3.0",
-      "resolved": "https://registry.npmjs.org/mustache-express/-/mustache-express-1.3.0.tgz",
-      "integrity": "sha512-JWG8Rzxh9tpoLEH0NZ2u/caDiwhIkW+50IOBrcO+lHya3tCYj41bYPDEHCxPbKXvPrSyMNpI6ly4xdU2zpNQtg==",
+      "version": "1.3.1",
+      "resolved": "https://registry.npmjs.org/mustache-express/-/mustache-express-1.3.1.tgz",
+      "integrity": "sha512-RSSzrvM+CVAk9217dkWSNYyl6c2JnesNn6zaZ8+FvZSn8aLxY9l4kTnYqIoiE8GxdLyVQL2ak7XlMZS6t/l8YA==",
       "requires": {
-        "async": "~3.1.0",
+        "async": "~3.2.0",
         "lru-cache": "~5.1.1",
-        "mustache": "^3.1.0"
+        "mustache": "^4.2.0"
       }
     },
     "natural-compare": {
diff --git a/package.json b/package.json
index c28be4a..1d56b05 100644
--- a/package.json
+++ b/package.json
@@ -29,7 +29,7 @@
     "fast-levenshtein": "*",
     "html-entities": "*",
     "mustache": "*",
-    "mustache-express": "*",
+    "mustache-express": "1.3.1",
     "nedb": "*",
     "nodemailer": "*",
     "request": "^2.88.0",