diff --git a/default.nix b/default.nix
index e0e991f5..39deba42 100644
--- a/default.nix
+++ b/default.nix
@@ -46,7 +46,7 @@ let
     # hash-fresh` enforces this stays in sync with pnpm-lock.yaml by forcing
     # fetchPnpmDeps to re-execute (--rebuild), so stale artifacts in the
     # binary cache can't silently satisfy a hash that no longer matches.
-    hash = "sha256-VXMh+I6dHB1/Dj8g9iw91dZsJWcnplswmpe4+abei7E=";
+    hash = "sha256-OTLK2f40ng1y1Sa/C3d0mVMRjiYFNs9r2mD70caO/FQ=";
     fetcherVersion = 3;
   };
 
diff --git a/package.json b/package.json
index 5893e30f..a339ec09 100644
--- a/package.json
+++ b/package.json
@@ -18,8 +18,8 @@
       "yaml": "^2.8.3",
       "defu": "^6.1.5",
       "@anthropic-ai/sdk": "^0.81.0",
-      "@xterm/xterm": "github:juspay/xterm.js#fix/kolu-xterm-fixes-built",
-      "@xterm/addon-webgl": "github:juspay/xterm.js#fix/kolu-xterm-fixes-built&path:/addons/addon-webgl"
+      "@xterm/xterm": "github:juspay/xterm.js#test/kolu-observer-nullify-built",
+      "@xterm/addon-webgl": "github:juspay/xterm.js#test/kolu-observer-nullify-built&path:/addons/addon-webgl"
     },
     "patchedDependencies": {
       "node-pty@1.1.0": "patches/node-pty@1.1.0.patch"
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 2aefbd51..1ea82620 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -10,8 +10,8 @@ overrides:
   yaml: ^2.8.3
   defu: ^6.1.5
   '@anthropic-ai/sdk': ^0.81.0
-  '@xterm/xterm': github:juspay/xterm.js#fix/kolu-xterm-fixes-built
-  '@xterm/addon-webgl': github:juspay/xterm.js#fix/kolu-xterm-fixes-built&path:/addons/addon-webgl
+  '@xterm/xterm': github:juspay/xterm.js#test/kolu-observer-nullify-built
+  '@xterm/addon-webgl': github:juspay/xterm.js#test/kolu-observer-nullify-built&path:/addons/addon-webgl
 
 patchedDependencies:
   node-pty@1.1.0:
@@ -89,11 +89,11 @@ importers:
         specifier: ^0.12.0
         version: 0.12.0
       '@xterm/addon-webgl':
-        specifier: github:juspay/xterm.js#fix/kolu-xterm-fixes-built&path:/addons/addon-webgl
-        version: https://codeload.github.com/juspay/xterm.js/tar.gz/0adc8d2bfe99192df74ff2ab15666d5529c3330c#path:/addons/addon-webgl
+        specifier: github:juspay/xterm.js#test/kolu-observer-nullify-built&path:/addons/addon-webgl
+        version: https://codeload.github.com/juspay/xterm.js/tar.gz/7454e13f55148dc06c0eaa23e7395838be6d0c29#path:/addons/addon-webgl
       '@xterm/xterm':
-        specifier: github:juspay/xterm.js#fix/kolu-xterm-fixes-built
-        version: https://codeload.github.com/juspay/xterm.js/tar.gz/0adc8d2bfe99192df74ff2ab15666d5529c3330c
+        specifier: github:juspay/xterm.js#test/kolu-observer-nullify-built
+        version: https://codeload.github.com/juspay/xterm.js/tar.gz/7454e13f55148dc06c0eaa23e7395838be6d0c29
       fix-webm-duration:
         specifier: ^1.0.6
         version: 1.0.6
@@ -391,8 +391,8 @@ importers:
   packages/terminal-themes:
     dependencies:
       '@xterm/xterm':
-        specifier: github:juspay/xterm.js#fix/kolu-xterm-fixes-built
-        version: https://codeload.github.com/juspay/xterm.js/tar.gz/0adc8d2bfe99192df74ff2ab15666d5529c3330c
+        specifier: github:juspay/xterm.js#test/kolu-observer-nullify-built
+        version: https://codeload.github.com/juspay/xterm.js/tar.gz/7454e13f55148dc06c0eaa23e7395838be6d0c29
     devDependencies:
       typescript:
         specifier: ^5.8.0
@@ -2082,15 +2082,15 @@ packages:
   '@xterm/addon-web-links@0.12.0':
     resolution: {integrity: sha512-4Smom3RPyVp7ZMYOYDoC/9eGJJJqYhnPLGGqJ6wOBfB8VxPViJNSKdgRYb8NpaM6YSelEKbA2SStD7lGyqaobw==}
 
-  '@xterm/addon-webgl@https://codeload.github.com/juspay/xterm.js/tar.gz/0adc8d2bfe99192df74ff2ab15666d5529c3330c#path:/addons/addon-webgl':
-    resolution: {path: /addons/addon-webgl, tarball: https://codeload.github.com/juspay/xterm.js/tar.gz/0adc8d2bfe99192df74ff2ab15666d5529c3330c}
+  '@xterm/addon-webgl@https://codeload.github.com/juspay/xterm.js/tar.gz/7454e13f55148dc06c0eaa23e7395838be6d0c29#path:/addons/addon-webgl':
+    resolution: {path: /addons/addon-webgl, tarball: https://codeload.github.com/juspay/xterm.js/tar.gz/7454e13f55148dc06c0eaa23e7395838be6d0c29}
     version: 0.19.0
 
   '@xterm/headless@6.0.0':
     resolution: {integrity: sha512-5Yj1QINYCyzrZtf8OFIHi47iQtI+0qYFPHmouEfG8dHNxbZ9Tb9YGSuLcsEwj9Z+OL75GJqPyJbyoFer80a2Hw==}
 
-  '@xterm/xterm@https://codeload.github.com/juspay/xterm.js/tar.gz/0adc8d2bfe99192df74ff2ab15666d5529c3330c':
-    resolution: {tarball: https://codeload.github.com/juspay/xterm.js/tar.gz/0adc8d2bfe99192df74ff2ab15666d5529c3330c}
+  '@xterm/xterm@https://codeload.github.com/juspay/xterm.js/tar.gz/7454e13f55148dc06c0eaa23e7395838be6d0c29':
+    resolution: {tarball: https://codeload.github.com/juspay/xterm.js/tar.gz/7454e13f55148dc06c0eaa23e7395838be6d0c29}
     version: 6.0.0
 
   accepts@2.0.0:
@@ -5890,11 +5890,11 @@ snapshots:
 
   '@xterm/addon-web-links@0.12.0': {}
 
-  '@xterm/addon-webgl@https://codeload.github.com/juspay/xterm.js/tar.gz/0adc8d2bfe99192df74ff2ab15666d5529c3330c#path:/addons/addon-webgl': {}
+  '@xterm/addon-webgl@https://codeload.github.com/juspay/xterm.js/tar.gz/7454e13f55148dc06c0eaa23e7395838be6d0c29#path:/addons/addon-webgl': {}
 
   '@xterm/headless@6.0.0': {}
 
-  '@xterm/xterm@https://codeload.github.com/juspay/xterm.js/tar.gz/0adc8d2bfe99192df74ff2ab15666d5529c3330c': {}
+  '@xterm/xterm@https://codeload.github.com/juspay/xterm.js/tar.gz/7454e13f55148dc06c0eaa23e7395838be6d0c29': {}
 
   accepts@2.0.0:
     dependencies: