diff --git a/composer.json b/composer.json
index 2e43c110..93d5fe91 100644
--- a/composer.json
+++ b/composer.json
@@ -8,7 +8,7 @@
         "composer/composer": "^1.10.22 || ^2.0.13",
         "cweagans/composer-patches": "^1.6.4",
         "drupal/acquia_connector": "*",
-        "drupal/core": "~8.9.17",
+        "drupal/core": "~8.9.18",
         "drupal/libraries": "^3.0",
         "drupal/lightning_api": "^4.1",
         "drupal/lightning_core": "^5.2",
diff --git a/composer.lock b/composer.lock
index e0879671..6a5792e5 100644
--- a/composer.lock
+++ b/composer.lock
@@ -4,7 +4,7 @@
         "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#installing-dependencies",
         "This file is @generated automatically"
     ],
-    "content-hash": "9457ae6c2b61e613d9c5faf8bc30fc53",
+    "content-hash": "e20e73b23543756d32a4960872f4f421",
     "packages": [
         {
             "name": "asm89/stack-cors",
@@ -2073,16 +2073,16 @@
         },
         {
             "name": "drupal/core",
-            "version": "8.9.17",
+            "version": "8.9.18",
             "source": {
                 "type": "git",
                 "url": "https://github.com/drupal/core.git",
-                "reference": "a1416f2cc6701acc0cc6725bfeac3715e633fd9c"
+                "reference": "e536176c45d9d75ec57f7a12c0e3c0aead856841"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/drupal/core/zipball/a1416f2cc6701acc0cc6725bfeac3715e633fd9c",
-                "reference": "a1416f2cc6701acc0cc6725bfeac3715e633fd9c",
+                "url": "https://api.github.com/repos/drupal/core/zipball/e536176c45d9d75ec57f7a12c0e3c0aead856841",
+                "reference": "e536176c45d9d75ec57f7a12c0e3c0aead856841",
                 "shasum": ""
             },
             "require": {
@@ -2301,9 +2301,9 @@
             ],
             "description": "Drupal is an open source content management platform powering millions of websites and applications.",
             "support": {
-                "source": "https://github.com/drupal/core/tree/8.9.17"
+                "source": "https://github.com/drupal/core/tree/8.9.18"
             },
-            "time": "2021-07-20T21:43:12+00:00"
+            "time": "2021-08-12T17:48:42+00:00"
         },
         {
             "name": "drupal/crop",