diff --git a/bun.lock b/bun.lock
index 8c8c638e96..8155452d14 100644
--- a/bun.lock
+++ b/bun.lock
@@ -513,7 +513,7 @@
     "@kobalte/core": "0.13.11",
     "@octokit/rest": "22.0.0",
     "@openauthjs/openauth": "0.0.0-20250322224806",
-    "@pierre/diffs": "1.1.0-beta.10",
+    "@pierre/diffs": "1.1.0-beta.11",
     "@playwright/test": "1.51.0",
     "@solid-primitives/storage": "4.3.3",
     "@solidjs/meta": "0.29.4",
@@ -1409,7 +1409,7 @@
 
     "@petamoriken/float16": ["@petamoriken/float16@3.9.3", "", {}, "sha512-8awtpHXCx/bNpFt4mt2xdkgtgVvKqty8VbjHI/WWWQuEw+KLzFot3f4+LkQY9YmOtq7A5GdOnqoIC8Pdygjk2g=="],
 
-    "@pierre/diffs": ["@pierre/diffs@1.1.0-beta.10", "", { "dependencies": { "@shikijs/core": "^3.0.0", "@shikijs/engine-javascript": "^3.0.0", "@shikijs/transformers": "^3.0.0", "diff": "8.0.3", "hast-util-to-html": "9.0.5", "lru_map": "0.4.1", "shiki": "^3.0.0" }, "peerDependencies": { "react": "^18.3.1 || ^19.0.0", "react-dom": "^18.3.1 || ^19.0.0" } }, "sha512-VJz9Nl0mf9dxieH6VaXXV25Fq1wwT/xOWXqkarc9HYywCuw5ZoxHb9Ptw8+58XnTw0ZwwvYmsdfmkrKRZR3q9Q=="],
+    "@pierre/diffs": ["@pierre/diffs@1.1.0-beta.11", "", { "dependencies": { "@shikijs/transformers": "^3.0.0", "diff": "8.0.3", "hast-util-to-html": "9.0.5", "lru_map": "0.4.1", "shiki": "^3.0.0" }, "peerDependencies": { "react": "^18.3.1 || ^19.0.0", "react-dom": "^18.3.1 || ^19.0.0" } }, "sha512-he0zoLgAv6Hm/MwNa5X2Q5t552iLjTqaOopIx3eeF7UMYaJaZ/osg8L6jaZcgzMH7Oe5RAfP685km6vd8nbsfQ=="],
 
     "@pinojs/redact": ["@pinojs/redact@0.4.0", "", {}, "sha512-k2ENnmBugE/rzQfEcdWHcCY+/FM3VLzH9cYEsbdsoqrvzAKRhUZeRNhAZvB8OitQJ1TBed3yqWtdjzS6wJKBwg=="],
 
@@ -4387,8 +4387,6 @@
 
     "@oslojs/jwt/@oslojs/encoding": ["@oslojs/encoding@0.4.1", "", {}, "sha512-hkjo6MuIK/kQR5CrGNdAPZhS01ZCXuWDRJ187zh6qqF2+yMHZpD9fAYpX8q2bOO6Ryhl3XpCT6kUX76N8hhm4Q=="],
 
-    "@pierre/diffs/@shikijs/core": ["@shikijs/core@3.20.0", "", { "dependencies": { "@shikijs/types": "3.20.0", "@shikijs/vscode-textmate": "^10.0.2", "@types/hast": "^3.0.4", "hast-util-to-html": "^9.0.5" } }, "sha512-f2ED7HYV4JEk827mtMDwe/yQ25pRiXZmtHjWF8uzZKuKiEsJR7Ce1nuQ+HhV9FzDcbIo4ObBCD9GPTzNuy9S1g=="],
-
     "@pierre/diffs/@shikijs/transformers": ["@shikijs/transformers@3.19.0", "", { "dependencies": { "@shikijs/core": "3.19.0", "@shikijs/types": "3.19.0" } }, "sha512-e6vwrsyw+wx4OkcrDbL+FVCxwx8jgKiCoXzakVur++mIWVcgpzIi8vxf4/b4dVTYrV/nUx5RjinMf4tq8YV8Fw=="],
 
     "@pierre/diffs/diff": ["diff@8.0.3", "", {}, "sha512-qejHi7bcSD4hQAZE0tNAawRK1ZtafHDmMTMkrrIGgSLl7hTnQHmKCeB45xAcbfTqK2zowkM3j3bHt/4b/ARbYQ=="],
@@ -4971,8 +4969,6 @@
 
     "@opentui/solid/@babel/core/semver": ["semver@6.3.1", "", { "bin": { "semver": "bin/semver.js" } }, "sha512-BR7VvDCVHO+q2xBEWskxS6DJE1qRnb7DxzUrogb71CWoSficBxYsiAGd+Kl0mmq/MprG9yArRkyrQxTO6XjMzA=="],
 
-    "@pierre/diffs/@shikijs/core/@shikijs/types": ["@shikijs/types@3.20.0", "", { "dependencies": { "@shikijs/vscode-textmate": "^10.0.2", "@types/hast": "^3.0.4" } }, "sha512-lhYAATn10nkZcBQ0BlzSbJA3wcmL5MXUUF8d2Zzon6saZDlToKaiRX60n2+ZaHJCmXEcZRWNzn+k9vplr8Jhsw=="],
-
     "@pierre/diffs/@shikijs/transformers/@shikijs/core": ["@shikijs/core@3.19.0", "", { "dependencies": { "@shikijs/types": "3.19.0", "@shikijs/vscode-textmate": "^10.0.2", "@types/hast": "^3.0.4", "hast-util-to-html": "^9.0.5" } }, "sha512-L7SrRibU7ZoYi1/TrZsJOFAnnHyLTE1SwHG1yNWjZIVCqjOEmCSuK2ZO9thnRbJG6TOkPp+Z963JmpCNw5nzvA=="],
 
     "@pierre/diffs/@shikijs/transformers/@shikijs/types": ["@shikijs/types@3.19.0", "", { "dependencies": { "@shikijs/vscode-textmate": "^10.0.2", "@types/hast": "^3.0.4" } }, "sha512-Z2hdeEQlzuntf/BZpFG8a+Fsw9UVXdML7w0o3TgSXV3yNESGon+bs9ITkQb3Ki7zxoXOOu5oJWqZ2uto06V9iQ=="],
diff --git a/package.json b/package.json
index 749063a0b9..706bb96f8d 100644
--- a/package.json
+++ b/package.json
@@ -35,7 +35,7 @@
       "@tsconfig/bun": "1.0.9",
       "@cloudflare/workers-types": "4.20251008.0",
       "@openauthjs/openauth": "0.0.0-20250322224806",
-      "@pierre/diffs": "1.1.0-beta.10",
+      "@pierre/diffs": "1.1.0-beta.11",
       "@solid-primitives/storage": "4.3.3",
       "@tailwindcss/vite": "4.1.11",
       "diff": "8.0.2",
diff --git a/packages/ui/src/pierre/worker.ts b/packages/ui/src/pierre/worker.ts
index 0d117c3683..1993ad7aa6 100644
--- a/packages/ui/src/pierre/worker.ts
+++ b/packages/ui/src/pierre/worker.ts
@@ -21,6 +21,7 @@ function createPool(lineDiffType: "none" | "word-alt") {
     {
       theme: "OpenCode",
       lineDiffType,
+      preferredHighlighter: "shiki-wasm",
     },
   )