diff --git a/.changeset/gorgeous-paws-yawn.md b/.changeset/gorgeous-paws-yawn.md
new file mode 100644
index 00000000..d5ee121b
--- /dev/null
+++ b/.changeset/gorgeous-paws-yawn.md
@@ -0,0 +1,5 @@
+---
+'@portaljs/core': patch
+---
+
+Move mdx-mermaid to peer-dependencies.
diff --git a/packages/core/package.json b/packages/core/package.json
index 5a099011..c86b9e18 100644
--- a/packages/core/package.json
+++ b/packages/core/package.json
@@ -35,7 +35,6 @@
     "disqus-react": "^1.1.5",
     "framer-motion": "^10.0.1",
     "kbar": "0.1.0-beta.40",
-    "mdx-mermaid": "^1.3.2",
     "mermaid": "^10.2.2",
     "prop-types": "^15.8.1"
   },
@@ -43,6 +42,7 @@
     "next": "^13.2.1",
     "next-themes": "^0.2.1",
     "react": "^18.2.0",
-    "react-dom": "^18.2.0"
+    "react-dom": "^18.2.0",
+    "mdx-mermaid": "2.0.0-rc7"
   }
 }