From ebbd4dcd2d8d1e01a464df6d8fa16448378beaf1 Mon Sep 17 00:00:00 2001
From: Nikolaus Heger <nheger@gmail.com>
Date: Sat, 8 Aug 2026 15:07:41 +0800
Subject: [PATCH] chore: bump qp-poseidon-core to 3.1.0

Update workspace pin from 2.1.0 to 3.1.0 for sponge wipe hardening.
(qpow-math from the pinned chain tag may still pull 2.1.0 transitively.)
---
 Cargo.lock | 10 ++++++++--
 Cargo.toml |  2 +-
 2 files changed, 9 insertions(+), 3 deletions(-)

diff --git a/Cargo.lock b/Cargo.lock
index cd40224..37eb6ed 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -602,7 +602,7 @@ dependencies = [
  "qp-plonky2",
  "qp-plonky2-field",
  "qp-poseidon-constants",
- "qp-poseidon-core",
+ "qp-poseidon-core 3.1.0",
  "rand 0.9.2",
  "rand_chacha 0.9.0",
  "regex",
@@ -2259,6 +2259,12 @@ version = "2.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "78172860cd960773c72e97fba07ead9e5a1c13086c5746283744933e2e4a577b"
 
+[[package]]
+name = "qp-poseidon-core"
+version = "3.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5872607e25ea4ee5fb37e64bf1462168e1a36a4e719cdc8a105533c708253918"
+
 [[package]]
 name = "qpow-math"
 version = "0.1.0"
@@ -2267,7 +2273,7 @@ dependencies = [
  "hex",
  "log",
  "primitive-types 0.13.1",
- "qp-poseidon-core",
+ "qp-poseidon-core 2.1.0",
 ]
 
 [[package]]
diff --git a/Cargo.toml b/Cargo.toml
index 850ee29..4b5995e 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -32,7 +32,7 @@ num-bigint = { version = "0.4", features = ["rand"] }
 num-traits = "0.2"
 num_cpus = "1.16"
 primitive-types = { version = "0.13.1", default-features = false }
-qp-poseidon-core = { version = "2.1.0", default-features = false }
+qp-poseidon-core = { version = "3.1.0", default-features = false }
 qpow-math = { git = "https://github.com/Quantus-Network/chain.git", tag = "v0.7.1-q-day-2", package = "qpow-math", default-features = false }
 quantus-miner-api = { git = "https://github.com/Quantus-Network/chain.git", tag = "v0.7.1-q-day-2" }
 rand = { version = "0.9", default-features = false, features = ["std", "std_rng", "thread_rng"] }