diff --git a/nightly.nix b/nightly.nix
index 184271c..292a460 100644
--- a/nightly.nix
+++ b/nightly.nix
@@ -2,7 +2,7 @@
 # Auto-updated by scripts/update-nightly.sh — do not edit manually.
 { pkgs }:
 pkgs.callPackage ./package.nix {
-  pinVersion = "0.19.0-unstable-2026-07-22.9eb7b1a6";
-  pinRev = "9eb7b1a6b1ffdd4ad1a85aee3f38edceee2b927f";
-  pinHash = "sha256-baXMhFvdjbw6nW0TChPWlBZrCRxFCnyLJ1Pe7IjGDUA=";
+  pinVersion = "0.20.0-unstable-2026-08-05.652ebc58";
+  pinRev = "652ebc58995d7dc351f5246e2c6646bea24bd17a";
+  pinHash = "sha256-xRPsCwbr6Hheh4MrkcpP1cL5D2RUgRB8j6W8CGjL5ho=";
 }