diff --git a/MPC/third_party_adaptor/secrerflow/psi/patches/kcal.patch b/MPC/third_party_adaptor/secrerflow/psi/patches/kcal.patch
index 08be4e7762045f1cf8f1a98e67a5c1d5e2c3be5d..57118b58e380d91d12db8f5ac9e76986b49c57d2 100644
--- a/MPC/third_party_adaptor/secrerflow/psi/patches/kcal.patch
+++ b/MPC/third_party_adaptor/secrerflow/psi/patches/kcal.patch
@@ -402,7 +402,7 @@ index 0000000..f70f135
 +  GlobalManager::GetInstance().InitializeCtx(lctx_);
 +
 +  ::kcal::KCAL_Config kcal_cfg{};
-+  kcal_cfg.fixBits = 1;
++  kcal_cfg.fixBits = 3;
 +  kcal_cfg.nodeId = lctx_->Rank();
 +  kcal_cfg.threadCount = options_->thread_count;
 +  kcal_cfg.useSMAlg = options_->use_sm_alg;
@@ -608,7 +608,7 @@ index 0000000..a2235be
 +  GlobalManager::GetInstance().InitializeCtx(lctx_);
 +
 +  ::kcal::KCAL_Config kcal_cfg{};
-+  kcal_cfg.fixBits = 1;
++  kcal_cfg.fixBits = 3;
 +  kcal_cfg.nodeId = lctx_->Rank();
 +  kcal_cfg.threadCount = options_->thread_count;
 +  kcal_cfg.useSMAlg = options_->use_sm_alg;
@@ -897,7 +897,7 @@ index 0000000..c396db1
 +  GlobalManager::GetInstance().InitializeCtx(lctx_);
 +  // 
 +  ::kcal::KCAL_Config kcal_cfg;
-+  kcal_cfg.fixBits = 1;
++  kcal_cfg.fixBits = 3;
 +  kcal_cfg.nodeId = lctx_->Rank();
 +  kcal_cfg.threadCount = config_.protocol_config().kcal_config().thread_count();
 +  kcal_cfg.useSMAlg = config_.protocol_config().kcal_config().use_sm_alg();
@@ -1010,7 +1010,7 @@ index 0000000..c53c79e
 +  GlobalManager::GetInstance().InitializeCtx(lctx_);
 +  // 
 +  ::kcal::KCAL_Config kcal_cfg;
-+  kcal_cfg.fixBits = 1;
++  kcal_cfg.fixBits = 3;
 +  kcal_cfg.nodeId = lctx_->Rank();
 +  kcal_cfg.threadCount = config_.protocol_config().kcal_config().thread_count();
 +  kcal_cfg.useSMAlg = config_.protocol_config().kcal_config().use_sm_alg();
diff --git a/MPC/third_party_adaptor/secrerflow/scql/patches/kcal.patch b/MPC/third_party_adaptor/secrerflow/scql/patches/kcal.patch
index 04b4594a5c532db8e1672f3db165c3a1e544b38c..dc4a1ac387759ebb8ff7a28897df25752244c22d 100644
--- a/MPC/third_party_adaptor/secrerflow/scql/patches/kcal.patch
+++ b/MPC/third_party_adaptor/secrerflow/scql/patches/kcal.patch
@@ -100,7 +100,7 @@ index 3beaa88..1e02c77 100644
 +              params.spu_runtime_cfg().max_concurrency(),
 +              params.spu_runtime_cfg().fxp_fraction_bits());
 +  kcal::KCAL_Config kcal_cfg{};
-+  kcal_cfg.fixBits = params.spu_runtime_cfg().fxp_fraction_bits();
++  kcal_cfg.fixBits = 3;  // 3 means .xxx
 +  kcal_cfg.nodeId = lctx_->Rank();
 +  kcal_cfg.threadCount = params.spu_runtime_cfg().max_concurrency();
 +  kcal_cfg.useSMAlg = false;