diff --git a/pkgs/development/tools/build-managers/buck2/default.nix b/pkgs/development/tools/build-managers/buck2/default.nix
index 24a7db6b2247..7fa99a962264 100644
--- a/pkgs/development/tools/build-managers/buck2/default.nix
+++ b/pkgs/development/tools/build-managers/buck2/default.nix
@@ -38,7 +38,7 @@ let
   buildHashes = builtins.fromJSON (builtins.readFile ./hashes.json);
 
   # our version of buck2; this should be a git tag
-  version = "2023-09-15";
+  version = "2023-10-01";
 
   # the platform-specific, statically linked binary — which is also
   # zstd-compressed
@@ -63,7 +63,7 @@ let
   # tooling
   prelude-src =
     let
-      prelude-hash = "1cdbe261a4e669d9bb25bac5617b17919b2bb05c";
+      prelude-hash = "75aa81a92edd2bf477538f9a3f0fe6a47e811842";
       name = "buck2-prelude-${version}.tar.gz";
       hash = buildHashes."_prelude";
       url = "https://github.com/facebook/buck2-prelude/archive/${prelude-hash}.tar.gz";
diff --git a/pkgs/development/tools/build-managers/buck2/hashes.json b/pkgs/development/tools/build-managers/buck2/hashes.json
index 8fafcf99bc5c..53df40eb622e 100644
--- a/pkgs/development/tools/build-managers/buck2/hashes.json
+++ b/pkgs/development/tools/build-managers/buck2/hashes.json
@@ -1,7 +1,7 @@
 { "_comment": "@generated by pkgs/development/tools/build-managers/buck2/update.sh"
-, "_prelude": "sha256-M+QlMVemxkdajUEnsLzvkFyZ6rW59n2uFafftDze0tc="
-, "x86_64-linux": "sha256-cMHNeR6jdYiumJZgNQviCNtzv3DfvJISG6AbWdQYquo="
-, "x86_64-darwin": "sha256-03QD4rXmBgEY95b63Yzimhj7sRoeEomT3N5n0xYzweU="
-, "aarch64-linux": "sha256-nATdxVVNH7RVJ7ck3tDjcf4Ask0aZkH1sy/2eKtJpKM="
-, "aarch64-darwin": "sha256-+l0W5918KRYwBi/5pqSr10RaVH79QT5qx/cZRDaZ0EY="
+, "_prelude": "sha256-SshYnziEP/2jdoeLZYkQOvH56VBOJZaf0TUt++tLO1U="
+, "x86_64-linux": "sha256-eztjSDjgtXZWeDSPsKNSUGlIR+g8DsByIjDpcGNXB2s="
+, "x86_64-darwin": "sha256-buC0mShgDPU1+oeuNdjP6hNq1MoJDIPaEHCGL+Rcsr8="
+, "aarch64-linux": "sha256-52Ld12TzC51OutjZY+idpd7GhFr2tPksz1pda4F9Zag="
+, "aarch64-darwin": "sha256-b9peYBF9FZbSdMiwC8E/+y15pWlFe37/Euj5v8q3v1E="
 }