diff --git a/overlays/unstable/claude-code/package-lock.json b/overlays/unstable/claude-code/package-lock.json
index 7b2ca36..c191128 100644
--- a/overlays/unstable/claude-code/package-lock.json
+++ b/overlays/unstable/claude-code/package-lock.json
@@ -6,13 +6,13 @@
   "packages": {
     "": {
       "dependencies": {
-        "@anthropic-ai/claude-code": "^1.0.128"
+        "@anthropic-ai/claude-code": "^1.0.109"
       }
     },
     "node_modules/@anthropic-ai/claude-code": {
-      "version": "1.0.128",
-      "resolved": "https://registry.npmjs.org/@anthropic-ai/claude-code/-/claude-code-1.0.128.tgz",
-      "integrity": "sha512-uUg5cFMJfeQetQzFw76Vpbro6DAXst2Lpu8aoZWRFSoQVYu5ZSAnbBoxaWmW/IgnHSqIIvtMwzCoqmcA9j9rNQ==",
+      "version": "1.0.109",
+      "resolved": "https://registry.npmjs.org/@anthropic-ai/claude-code/-/claude-code-1.0.109.tgz",
+      "integrity": "sha512-gjj76f/+M5KfI+ORA9VNVJgR7s8eyur66XCWIIO66q4poNWcszxidXo+TDTqokLLwuNV+qFGx4JkK/PDmtwqMA==",
       "license": "SEE LICENSE IN README.md",
       "bin": {
         "claude": "cli.js"
diff --git a/overlays/unstable/claude-code/package.nix b/overlays/unstable/claude-code/package.nix
index 77e487c..4b9fc0a 100644
--- a/overlays/unstable/claude-code/package.nix
+++ b/overlays/unstable/claude-code/package.nix
@@ -7,16 +7,16 @@
 
 buildNpmPackage rec {
   pname = "claude-code";
-  version = "1.0.128";
+  version = "2.0.1";
 
   nodejs = nodejs_20; # required for sandboxed Nix builds on Darwin
 
   src = fetchzip {
     url = "https://registry.npmjs.org/@anthropic-ai/claude-code/-/claude-code-${version}.tgz";
-    hash = "sha256-dzLGcCgje3FMMS+Ptmxd2JK08y7z9rI0ak5l3Bv1MUk=";
+    hash = "sha256-LUbDPFa0lY74MBU4hvmYVntt6hVZy6UUZFN0iB4Eno8=";
   };
 
-  npmDepsHash = "sha256-Oba5Wx3HdrXaYKklm9LrKXVdvBeo05CgGy4zzo2B9T0=";
+  npmDepsHash = "sha256-jpvy7b4A+E5iI7Y7kYnwH51BZAQGVXKaf3lQjI9e3OM=";
 
   postPatch = ''
     cp ${./package-lock.json} package-lock.json
@@ -28,9 +28,11 @@ buildNpmPackage rec {
 
   # `claude-code` tries to auto-update by default, this disables that functionality.
   # https://docs.anthropic.com/en/docs/agents-and-tools/claude-code/overview#environment-variables
+  # The DEV=true env var causes claude to crash with `TypeError: window.WebSocket is not a constructor`
   postInstall = ''
     wrapProgram $out/bin/claude \
-      --set DISABLE_AUTOUPDATER 1
+      --set DISABLE_AUTOUPDATER 1 \
+      --unset DEV
   '';
 
   passthru.updateScript = ./update.sh;
@@ -42,6 +44,7 @@ buildNpmPackage rec {
     license = lib.licenses.unfree;
     maintainers = with lib.maintainers; [
       malo
+      markus1189
       omarjatoi
     ];
     mainProgram = "claude";