diff --git a/packages/astro/performance/fixtures/mdoc/package.json b/packages/astro/performance/fixtures/mdoc/package.json
index b49f4194a..05f9053be 100644
--- a/packages/astro/performance/fixtures/mdoc/package.json
+++ b/packages/astro/performance/fixtures/mdoc/package.json
@@ -14,7 +14,7 @@
   "author": "",
   "license": "unlicensed",
   "dependencies": {
-    "@astrojs/markdoc": "^0.0.0",
+    "@astrojs/markdoc": "^0.0.0-markdoc-20230302210326",
     "@astrojs/react": "^2.0.2",
     "@performance/utils": "^0.0.0",
     "@types/react": "^18.0.21",
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 592d9616a..e53efa390 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -1189,7 +1189,7 @@ importers:
 
   packages/astro/performance/fixtures/mdoc:
     specifiers:
-      '@astrojs/markdoc': ^0.0.0
+      '@astrojs/markdoc': ^0.0.0-markdoc-20230302210326
       '@astrojs/react': ^2.0.2
       '@performance/utils': ^0.0.0
       '@types/react': ^18.0.21