diff --git a/package-lock.json b/package-lock.json
index 85dfb1f..b479a2f 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -11,7 +11,7 @@
       "dependencies": {
         "@postlight/parser": "^2.2.3",
         "body-parser": "1.20.2",
-        "express": "4.18.2",
+        "express": "4.18.3",
         "helmet": "7.1.0",
         "morgan": "1.10.0"
       },
@@ -1459,13 +1459,13 @@
       }
     },
     "node_modules/express": {
-      "version": "4.18.2",
-      "resolved": "https://registry.npmjs.org/express/-/express-4.18.2.tgz",
-      "integrity": "sha512-5/PsL6iGPdfQ/lKM1UuielYgv3BUoJfz1aUwU9vHZ+J7gyvwdQXFEBIEIaxeGf0GIcreATNyBExtalisDbuMqQ==",
+      "version": "4.18.3",
+      "resolved": "https://registry.npmjs.org/express/-/express-4.18.3.tgz",
+      "integrity": "sha512-6VyCijWQ+9O7WuVMTRBTl+cjNNIzD5cY5mQ1WM8r/LEkI2u8EYpOotESNwzNlyCn3g+dmjKYI6BmNneSr/FSRw==",
       "dependencies": {
         "accepts": "~1.3.8",
         "array-flatten": "1.1.1",
-        "body-parser": "1.20.1",
+        "body-parser": "1.20.2",
         "content-disposition": "0.5.4",
         "content-type": "~1.0.4",
         "cookie": "0.5.0",
@@ -1499,29 +1499,6 @@
         "node": ">= 0.10.0"
       }
     },
-    "node_modules/express/node_modules/body-parser": {
-      "version": "1.20.1",
-      "resolved": "https://registry.npmjs.org/body-parser/-/body-parser-1.20.1.tgz",
-      "integrity": "sha512-jWi7abTbYwajOytWCQc37VulmWiRae5RyTpaCyDcS5/lMdtwSz5lOpDE67srw/HYe35f1z3fDQw+3txg7gNtWw==",
-      "dependencies": {
-        "bytes": "3.1.2",
-        "content-type": "~1.0.4",
-        "debug": "2.6.9",
-        "depd": "2.0.0",
-        "destroy": "1.2.0",
-        "http-errors": "2.0.0",
-        "iconv-lite": "0.4.24",
-        "on-finished": "2.4.1",
-        "qs": "6.11.0",
-        "raw-body": "2.5.1",
-        "type-is": "~1.6.18",
-        "unpipe": "1.0.0"
-      },
-      "engines": {
-        "node": ">= 0.8",
-        "npm": "1.2.8000 || >= 1.4.16"
-      }
-    },
     "node_modules/express/node_modules/on-finished": {
       "version": "2.4.1",
       "resolved": "https://registry.npmjs.org/on-finished/-/on-finished-2.4.1.tgz",
@@ -1547,20 +1524,6 @@
         "url": "https://github.com/sponsors/ljharb"
       }
     },
-    "node_modules/express/node_modules/raw-body": {
-      "version": "2.5.1",
-      "resolved": "https://registry.npmjs.org/raw-body/-/raw-body-2.5.1.tgz",
-      "integrity": "sha512-qqJBtEyVgS0ZmPGdCFPWJ3FreoqvG4MVQln/kCgF7Olq95IbOp0/BWyMwbdtn4VTvkM8Y7khCQ2Xgk/tcrCXig==",
-      "dependencies": {
-        "bytes": "3.1.2",
-        "http-errors": "2.0.0",
-        "iconv-lite": "0.4.24",
-        "unpipe": "1.0.0"
-      },
-      "engines": {
-        "node": ">= 0.8"
-      }
-    },
     "node_modules/express/node_modules/safe-buffer": {
       "version": "5.2.1",
       "resolved": "https://registry.npmjs.org/safe-buffer/-/safe-buffer-5.2.1.tgz",
diff --git a/package.json b/package.json
index 6d51e6e..d5c275e 100644
--- a/package.json
+++ b/package.json
@@ -21,7 +21,7 @@
   "dependencies": {
     "@postlight/parser": "^2.2.3",
     "body-parser": "1.20.2",
-    "express": "4.18.2",
+    "express": "4.18.3",
     "helmet": "7.1.0",
     "morgan": "1.10.0"
   },