diff --git a/package-lock.json b/package-lock.json
index f4e37ff..9c0682d 100644
--- a/package-lock.json
+++ b/package-lock.json
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@@ -500,11 +576,28 @@
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     },
+    "sparse-bitfield": {
+      "version": "3.0.3",
+      "resolved": "https://registry.npmjs.org/sparse-bitfield/-/sparse-bitfield-3.0.3.tgz",
+      "integrity": "sha1-/0rm5oZWBWuks+eSqzM004JzyhE=",
+      "optional": true,
+      "requires": {
+        "memory-pager": "^1.0.2"
+      }
+    },
     "statuses": {
       "version": "1.5.0",
       "resolved": "https://registry.npmjs.org/statuses/-/statuses-1.5.0.tgz",
       "integrity": "sha1-Fhx9rBd2Wf2YEfQ3cfqZOBR4Yow="
     },
+    "string_decoder": {
+      "version": "1.1.1",
+      "resolved": "https://registry.npmjs.org/string_decoder/-/string_decoder-1.1.1.tgz",
+      "integrity": "sha512-n/ShnvDi6FHbbVfviro+WojiFzv+s8MPMHBczVePfUpDJLwoLT0ht1l4YwBCbi8pJAveEEdnkHyPyTP/mzRfwg==",
+      "requires": {
+        "safe-buffer": "~5.1.0"
+      }
+    },
     "toidentifier": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/toidentifier/-/toidentifier-1.0.0.tgz",
@@ -520,12 +613,17 @@
       }
     },
     "uglify-js": {
-      "version": "3.9.4",
-      "resolved": "https://registry.npmjs.org/uglify-js/-/uglify-js-3.9.4.tgz",
-      "integrity": "sha512-8RZBJq5smLOa7KslsNsVcSH+KOXf1uDU8yqLeNuVKwmT0T3FA0ZoXlinQfRad7SDcbZZRZE4ov+2v71EnxNyCA==",
-      "optional": true,
+      "version": "3.15.1",
+      "resolved": "https://registry.npmjs.org/uglify-js/-/uglify-js-3.15.1.tgz",
+      "integrity": "sha512-FAGKF12fWdkpvNJZENacOH0e/83eG6JyVQyanIJaBXCN1J11TUQv1T1/z8S+Z0CG0ZPk1nPcreF/c7lrTd0TEQ==",
+      "optional": true
+    },
+    "uid-safe": {
+      "version": "2.1.5",
+      "resolved": "https://registry.npmjs.org/uid-safe/-/uid-safe-2.1.5.tgz",
+      "integrity": "sha512-KPHm4VL5dDXKz01UuEd88Df+KzynaohSL9fBh096KWAxSKZQDI2uBrVqtvRM4rwrIrRRKsdLNML/lnaaVSRioA==",
       "requires": {
-        "commander": "~2.20.3"
+        "random-bytes": "~1.0.0"
       }
     },
     "unpipe": {
@@ -533,6 +631,11 @@
       "resolved": "https://registry.npmjs.org/unpipe/-/unpipe-1.0.0.tgz",
       "integrity": "sha1-sr9O6FFKrmFltIF4KdIbLvSZBOw="
     },
+    "util-deprecate": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmjs.org/util-deprecate/-/util-deprecate-1.0.2.tgz",
+      "integrity": "sha1-RQ1Nyfpw3nMnYvvS1KKJgUGaDM8="
+    },
     "utils-merge": {
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/utils-merge/-/utils-merge-1.0.1.tgz",
diff --git a/package.json b/package.json
index 2038cce..074e7a3 100644
--- a/package.json
+++ b/package.json
@@ -20,7 +20,7 @@
   "dependencies": {
     "body-parser": "^1.19.0",
     "express": "^4.17.1",
-    "express-handlebars": "^4.0.4",
+    "express-handlebars": "^5.3.1",
     "express-session": "^1.17.1",
     "mongodb": "^3.5.9"
   }