diff --git a/.changeset/little-beds-scream.md b/.changeset/little-beds-scream.md
new file mode 100644
index 00000000000..c970adfa366
--- /dev/null
+++ b/.changeset/little-beds-scream.md
@@ -0,0 +1,5 @@
+---
+'@mermaid-js/layout-tidy-tree': patch
+---
+
+fix: Inline non-layered-tidy-tree-layout to avoid downstream import issues
diff --git a/packages/mermaid-layout-tidy-tree/package.json b/packages/mermaid-layout-tidy-tree/package.json
index bdc15869f90..40107fc71d8 100644
--- a/packages/mermaid-layout-tidy-tree/package.json
+++ b/packages/mermaid-layout-tidy-tree/package.json
@@ -30,12 +30,12 @@
   ],
   "license": "MIT",
   "dependencies": {
-    "d3": "^7.9.0",
-    "non-layered-tidy-tree-layout": "^2.0.2"
+    "d3": "^7.9.0"
   },
   "devDependencies": {
     "@types/d3": "^7.4.3",
-    "mermaid": "workspace:^"
+    "mermaid": "workspace:^",
+    "non-layered-tidy-tree-layout": "^2.0.2"
   },
   "peerDependencies": {
     "mermaid": "^11.0.2"
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index a2d5135f290..dcb2dcbde42 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -451,9 +451,6 @@ importers:
       d3:
         specifier: ^7.9.0
         version: 7.9.0
-      non-layered-tidy-tree-layout:
-        specifier: ^2.0.2
-        version: 2.0.2
     devDependencies:
       '@types/d3':
         specifier: ^7.4.3
@@ -461,6 +458,9 @@ importers:
       mermaid:
         specifier: workspace:^
         version: link:../mermaid
+      non-layered-tidy-tree-layout:
+        specifier: ^2.0.2
+        version: 2.0.2
 
   packages/mermaid-zenuml:
     dependencies: