diff --git a/Cargo.toml b/Cargo.toml
index 29d00dd..596e96f 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "nuts-rs"
-version = "0.15.0"
+version = "0.15.1"
 authors = [
   "Adrian Seyboldt <adrian.seyboldt@gmail.com>",
   "PyMC Developers <pymc.devs@gmail.com>",
@@ -23,7 +23,7 @@ rand_distr = "0.5.0"
 multiversion = "0.8.0"
 itertools = "0.14.0"
 thiserror = "2.0.3"
-arrow = { version = "54.1.0", default-features = false, features = ["ffi"] }
+arrow = { version = "54.2.0", default-features = false, features = ["ffi"] }
 rand_chacha = "0.9.0"
 anyhow = "1.0.72"
 faer = { version = "0.21.4", default-features = false, features = [
@@ -35,7 +35,7 @@ pulp = "0.21.4"
 rayon = "1.10.0"
 
 [dev-dependencies]
-proptest = "1.5.0"
+proptest = "1.6.0"
 pretty_assertions = "1.4.0"
 criterion = "0.5.1"
 nix = "0.29.0"
diff --git a/src/sampler.rs b/src/sampler.rs
index 9e3f00a..e803228 100644
--- a/src/sampler.rs
+++ b/src/sampler.rs
@@ -151,8 +151,8 @@ impl Default for TransformedNutsSettings {
         Self {
             num_tune: 1500,
             num_draws: 1000,
-            maxdepth: 8,
-            max_energy_error: 1000f64,
+            maxdepth: 10,
+            max_energy_error: 20f64,
             store_gradient: false,
             store_unconstrained: false,
             store_divergences: false,
diff --git a/src/transform_adapt_strategy.rs b/src/transform_adapt_strategy.rs
index f4e9d3b..b1fa2b0 100644
--- a/src/transform_adapt_strategy.rs
+++ b/src/transform_adapt_strategy.rs
@@ -23,10 +23,10 @@ pub struct TransformedSettings {
 impl Default for TransformedSettings {
     fn default() -> Self {
         Self {
-            step_size_window: 0.1f64,
-            transform_update_freq: 50,
+            step_size_window: 0.07f64,
+            transform_update_freq: 128,
             use_orbit_for_training: false,
-            transform_train_max_energy_error: 50f64,
+            transform_train_max_energy_error: 20f64,
             dual_average_options: Default::default(),
         }
     }