diff --git a/tfhe/benches/core_crypto/pbs128_bench.rs b/tfhe/benches/core_crypto/pbs128_bench.rs
index 5c6d932b4..0f5912e31 100644
--- a/tfhe/benches/core_crypto/pbs128_bench.rs
+++ b/tfhe/benches/core_crypto/pbs128_bench.rs
@@ -7,10 +7,7 @@ fn sqr(x: f64) -> f64 {
 
 fn criterion_bench(c: &mut Criterion) {
     {
-        use tfhe::core_crypto::fft_impl::fft128::crypto::bootstrap::{
-            bootstrap_scratch, Fourier128LweBootstrapKey,
-        };
-        use tfhe::core_crypto::fft_impl::fft128::math::fft::Fft128;
+        use tfhe::core_crypto::fft_impl::fft128::crypto::bootstrap::bootstrap_scratch;
         use tfhe::core_crypto::prelude::*;
         type Scalar = u128;
 
diff --git a/toolchain.txt b/toolchain.txt
index 595cdb732..c5d77934f 100644
--- a/toolchain.txt
+++ b/toolchain.txt
@@ -1 +1 @@
-nightly-2023-01-30
+nightly-2023-04-12