diff --git a/pkgs/by-name/pi/pi-coding-agent/package.nix b/pkgs/by-name/pi/pi-coding-agent/package.nix
index 0adaeba4297f..1d43ec78e00f 100644
--- a/pkgs/by-name/pi/pi-coding-agent/package.nix
+++ b/pkgs/by-name/pi/pi-coding-agent/package.nix
@@ -13,16 +13,16 @@
 }:
 buildNpmPackage (finalAttrs: {
   pname = "pi-coding-agent";
-  version = "0.81.0";
+  version = "0.81.1";
 
   src = fetchFromGitHub {
     owner = "earendil-works";
     repo = "pi";
     tag = "v${finalAttrs.version}";
-    hash = "sha256-/TIYea6baa0vlz2G5wUv1aOknjEdo8zoo7eZI0Afjmk=";
+    hash = "sha256-xo3uoR7HceOCL3wqoMcacOe8WXP1o7ReAXne5t6Hgao=";
   };
 
-  npmDepsHash = "sha256-i0RwHPWBD06nh7FCM5F3R4kTOkH+7ulLFwIIDdH0vH0=";
+  npmDepsHash = "sha256-lzKQZbnITzgV9koucsMno6f61ubBLYUcwQEXtak1r1s=";
 
   # The provider model catalog (packages/ai/src/providers/data/) is generated by
   # a network fetch (models.dev plus provider APIs) and is gitignored upstream,
@@ -31,7 +31,7 @@ buildNpmPackage (finalAttrs: {
   # under dist/providers/data/. Bump this hash alongside version.
   modelData = fetchurl {
     url = "https://registry.npmjs.org/@earendil-works/pi-ai/-/pi-ai-${finalAttrs.version}.tgz";
-    hash = "sha256-YuCrwc/6xDHQkcvI6I7u/LTEKLx40nAuxSvPXe/h/1o=";
+    hash = "sha256-x53MD5DU370ZdNoz36P+OWZjGVpoM5sfVcEU2/ckDy8=";
   };
 
   preConfigure = ''
@@ -126,7 +126,7 @@ buildNpmPackage (finalAttrs: {
     description = "Coding agent CLI with read, bash, edit, write tools and session management";
     homepage = "https://pi.dev/";
     downloadPage = "https://www.npmjs.com/package/@earendil-works/pi-coding-agent";
-    changelog = "https://github.com/earendil-works/pi/blob/main/packages/coding-agent/CHANGELOG.md";
+    changelog = "https://github.com/earendil-works/pi/blob/v${finalAttrs.version}/packages/coding-agent/CHANGELOG.md";
     license = lib.licenses.mit;
     maintainers = with lib.maintainers; [
       munksgaard