diff --git a/backend/package-lock.json b/backend/package-lock.json
index 87075ce..97b4930 100644
--- a/backend/package-lock.json
+++ b/backend/package-lock.json
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@@ -560,20 +604,25 @@
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@@ -629,56 +678,59 @@
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@@ -892,11 +899,45 @@
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     "set-value": {
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       "resolved": "https://registry.npmjs.org/set-value/-/set-value-2.0.0.tgz",
@@ -2786,6 +3023,11 @@
         "repeat-string": "^1.6.1"
       }
     },
+    "toidentifier": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/toidentifier/-/toidentifier-1.0.1.tgz",
+      "integrity": "sha512-o5sSPKEkg/DIQNmH43V0/uerLrpzVedkUh8tGNvaeXpfpuwjKenlSox/2O/BTlZUtEe+JG7s5YhEz608PlAHRA=="
+    },
     "touch": {
       "version": "3.1.0",
       "resolved": "https://registry.npmjs.org/touch/-/touch-3.1.0.tgz",
diff --git a/backend/package.json b/backend/package.json
index b64f970..afe20b4 100644
--- a/backend/package.json
+++ b/backend/package.json
@@ -14,7 +14,7 @@
     "bcryptjs": "^2.4.3",
     "body-parser": "^1.18.2",
     "cors": "^2.8.5",
-    "express": "^4.16.2",
+    "express": "^4.17.3",
     "jsonwebtoken": "^8.4.0",
     "mongoose": "^5.5.15",
     "mongoose-unique-validator": "^2.0.3",