diff --git a/package-lock.json b/package-lock.json
index 0a0e4a3..6f1dfac 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -25,6 +25,7 @@
         "esbuild": "^0.11.20",
         "execa": "^5.1.1",
         "fs-extra": "^8.1.0",
+        "gray-matter": "^4.0.3",
         "jsdom": "^16.4.0",
         "just-has": "^2.1.0",
         "just-map-values": "^3.0.2",
diff --git a/package.json b/package.json
index 4408cf5..2a0925c 100644
--- a/package.json
+++ b/package.json
@@ -74,6 +74,7 @@
     "esbuild": "^0.11.20",
     "execa": "^5.1.1",
     "fs-extra": "^8.1.0",
+    "gray-matter": "^4.0.3",
     "jsdom": "^16.4.0",
     "just-has": "^2.1.0",
     "just-map-values": "^3.0.2",