diff --git a/packages/netlify-cms-core/package.json b/packages/netlify-cms-core/package.json
index 4d022a16..7c6b7c57 100644
--- a/packages/netlify-cms-core/package.json
+++ b/packages/netlify-cms-core/package.json
@@ -25,7 +25,7 @@
     "emotion": "^9.2.6",
     "fuzzy": "^0.1.1",
     "gotrue-js": "^0.9.15",
-    "gray-matter": "^3.0.6",
+    "gray-matter": "^4.0.1",
     "history": "^4.7.2",
     "immutable": "^3.7.6",
     "js-base64": "^2.1.9",
diff --git a/yarn.lock b/yarn.lock
index 0790b183..a0c894bf 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -5524,14 +5524,14 @@ graceful-fs@^4.1.11, graceful-fs@^4.1.2, graceful-fs@^4.1.6:
   resolved "https://registry.yarnpkg.com/graceful-fs/-/graceful-fs-4.1.15.tgz#ffb703e1066e8a0eeaa4c8b80ba9253eeefbfb00"
   integrity sha512-6uHUhOPEBgQ24HM+r6b/QwWfZq+yiFcipKFrOFiBEnWdy5sdzYoi+pJeQaPI5qOLRFqWmAXUPQNsielzdLoecA==
 
-gray-matter@^3.0.6:
-  version "3.1.1"
-  resolved "https://registry.yarnpkg.com/gray-matter/-/gray-matter-3.1.1.tgz#101f80d9e69eeca6765cdce437705b18f40876ac"
-  integrity sha512-nZ1qjLmayEv0/wt3sHig7I0s3/sJO0dkAaKYQ5YAOApUtYEOonXSFdWvL1khvnZMTvov4UufkqlFsilPnejEXA==
+gray-matter@^4.0.1:
+  version "4.0.1"
+  resolved "https://registry.yarnpkg.com/gray-matter/-/gray-matter-4.0.1.tgz#375263c194f0d9755578c277e41b1c1dfdf22c7d"
+  integrity sha512-p0MADBEBl1CohV7nRZ8sVinBexEe3CKVhh0A0QIHKpcbRoxB0VgeMpRPjW/HBHIPLAKrpIIIm5mZ6hKu3E+iQg==
   dependencies:
-    extend-shallow "^2.0.1"
-    js-yaml "^3.10.0"
-    kind-of "^5.0.2"
+    js-yaml "^3.11.0"
+    kind-of "^6.0.2"
+    section-matter "^1.0.0"
     strip-bom-string "^1.0.0"
 
 growly@^1.3.0:
@@ -7314,7 +7314,7 @@ kind-of@^4.0.0:
   dependencies:
     is-buffer "^1.1.5"
 
-kind-of@^5.0.0, kind-of@^5.0.2:
+kind-of@^5.0.0:
   version "5.1.0"
   resolved "https://registry.yarnpkg.com/kind-of/-/kind-of-5.1.0.tgz#729c91e2d857b7a419a1f9aa65685c4c33f5845d"
   integrity sha512-NGEErnH6F2vUuXDh+OlbcKW7/wOcfdRHaZ7VWtqCztfHri/++YKmP51OdWeGPuqCOba6kk2OTe5d02VmTB80Pw==
@@ -10601,6 +10601,14 @@ section-iterator@^2.0.0:
   resolved "https://registry.yarnpkg.com/section-iterator/-/section-iterator-2.0.0.tgz#bf444d7afeeb94ad43c39ad2fb26151627ccba2a"
   integrity sha1-v0RNev7rlK1Dw5rS+yYVFifMuio=
 
+section-matter@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/section-matter/-/section-matter-1.0.0.tgz#e9041953506780ec01d59f292a19c7b850b84167"
+  integrity sha512-vfD3pmTzGpufjScBh50YHKzEu2lxBWhVEHsNGoEXmCmn2hKGfeNLYMzCJpe8cD7gqX7TJluOVpBkAequ6dgMmA==
+  dependencies:
+    extend-shallow "^2.0.1"
+    kind-of "^6.0.0"
+
 select-hose@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/select-hose/-/select-hose-2.0.0.tgz#625d8658f865af43ec962bfc376a37359a4994ca"