From 1c05b9bf8022b9b4dd90c99ec829612b0165f1d1 Mon Sep 17 00:00:00 2001
From: Sora Morimoto <sora@morimoto.io>
Date: Sun, 15 Mar 2026 22:54:15 +0900
Subject: [PATCH] fix(streamdown): move mermaid from devDependencies to
 dependencies

The published type declarations (dist/index.d.ts) import MermaidConfig
from the mermaid package, making it part of the public API. Having it as
a devDependency meant consumers could end up resolving different mermaid
versions for streamdown and @streamdown/mermaid, causing type errors due
to incompatible MermaidConfig types.
---
 packages/streamdown/package.json | 2 +-
 pnpm-lock.yaml                   | 6 +++---
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/packages/streamdown/package.json b/packages/streamdown/package.json
index 175c5908..c2a3a2db 100644
--- a/packages/streamdown/package.json
+++ b/packages/streamdown/package.json
@@ -49,7 +49,6 @@
     "@vitejs/plugin-react": "^5.1.2",
     "@vitest/coverage-v8": "^4.0.15",
     "jsdom": "^27.3.0",
-    "mermaid": "^11.12.2",
     "react-markdown": "^10.1.0",
     "rehype-parse": "^9.0.1",
     "rehype-stringify": "^10.0.1",
@@ -75,6 +74,7 @@
     "remend": "workspace:*",
     "tailwind-merge": "^3.4.0",
     "unified": "^11.0.5",
+    "mermaid": "^11.12.2",
     "unist-util-visit": "^5.0.0",
     "unist-util-visit-parents": "^6.0.0"
   }
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 8356458d..9c6043ae 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -322,6 +322,9 @@ importers:
       marked:
         specifier: ^17.0.1
         version: 17.0.1
+      mermaid:
+        specifier: ^11.12.2
+        version: 11.12.2
       react:
         specifier: ^18.0.0 || ^19.0.0
         version: 19.2.3
@@ -392,9 +395,6 @@ importers:
       jsdom:
         specifier: ^27.3.0
         version: 27.4.0
-      mermaid:
-        specifier: ^11.12.2
-        version: 11.12.2
       react-dom:
         specifier: ^19.2.3
         version: 19.2.3(react@19.2.3)