diff --git a/packages/rolldown/package.json b/packages/rolldown/package.json
index c59f2a82..91057cac 100644
--- a/packages/rolldown/package.json
+++ b/packages/rolldown/package.json
@@ -62,7 +62,6 @@
     "ws": "catalog:deps"
   },
   "devDependencies": {
-    "@types/diff": "catalog:types",
     "@types/split2": "catalog:types",
     "@types/splitpanes": "catalog:types",
     "@types/stream-json": "catalog:types",
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 2738e8bf..c4768293 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -363,9 +363,6 @@ catalogs:
     '@types/d3-hierarchy':
       specifier: ^3.1.7
       version: 3.1.7
-    '@types/diff':
-      specifier: ^8.0.0
-      version: 8.0.0
     '@types/envinfo':
       specifier: ^7.8.4
       version: 7.8.4
@@ -887,9 +884,6 @@ importers:
         specifier: catalog:deps
         version: 8.19.0
     devDependencies:
-      '@types/diff':
-        specifier: catalog:types
-        version: 8.0.0
       '@types/split2':
         specifier: catalog:types
         version: 4.2.3
@@ -3303,10 +3297,6 @@ packages:
   '@types/deep-eql@4.0.2':
     resolution: {integrity: sha512-c9h9dVVMigMPc4bwTvC5dxqtqJZwQPePsWjPlpSOnojbor6pGqdk541lfA7AqFQr5pB1BRdq0juY9db81BwyFw==}
 
-  '@types/diff@8.0.0':
-    resolution: {integrity: sha512-o7jqJM04gfaYrdCecCVMbZhNdG6T1MHg/oQoRFdERLV+4d+V7FijhiEAbFu0Usww84Yijk9yH58U4Jk4HbtzZw==}
-    deprecated: This is a stub types definition. diff provides its own type definitions, so you do not need this installed.
-
   '@types/envinfo@7.8.4':
     resolution: {integrity: sha512-K5WaRgSlqjc408IyPbxOFnz7rVG9E8ELhj7XR3Ncui15EgeyIXTcCfmwrRnU4uEOCJQhzZRAQurYznEEc1dD2g==}
 
@@ -10635,10 +10625,6 @@ snapshots:
 
   '@types/deep-eql@4.0.2': {}
 
-  '@types/diff@8.0.0':
-    dependencies:
-      diff: 8.0.3
-
   '@types/envinfo@7.8.4': {}
 
   '@types/eslint-scope@3.7.7':
diff --git a/pnpm-workspace.yaml b/pnpm-workspace.yaml
index 1fd59a3f..f24e7b3f 100644
--- a/pnpm-workspace.yaml
+++ b/pnpm-workspace.yaml
@@ -152,7 +152,6 @@ catalogs:
     '@types/connect': ^3.4.38
     '@types/d3': ^7.4.3
     '@types/d3-hierarchy': ^3.1.7
-    '@types/diff': ^8.0.0
     '@types/envinfo': ^7.8.4
     '@types/react': ^19.2.14
     '@types/react-dom': ^19.2.3