diff --git a/math/mlpack/Makefile b/math/mlpack/Makefile
index 1943431e4ba0..264f0208a178 100644
--- a/math/mlpack/Makefile
+++ b/math/mlpack/Makefile
@@ -1,5 +1,5 @@
 PORTNAME=	mlpack
-DISTVERSION=	4.5.0
+DISTVERSION=	4.5.1
 CATEGORIES=	math # machine-learning
 MASTER_SITES=	https://mlpack.org/files/
 
diff --git a/math/mlpack/distinfo b/math/mlpack/distinfo
index b37ee00eda89..c2c0f4a01743 100644
--- a/math/mlpack/distinfo
+++ b/math/mlpack/distinfo
@@ -1,3 +1,3 @@
-TIMESTAMP = 1726679469
-SHA256 (mlpack-4.5.0.tar.gz) = aab70aee10c134ef3fe568843fe4b3bb5e8901af30ea666f57462ad950682317
-SIZE (mlpack-4.5.0.tar.gz) = 6376837
+TIMESTAMP = 1733374998
+SHA256 (mlpack-4.5.1.tar.gz) = 58059b911a78b8bda91eef4cfc6278383b24e71865263c2e0569cf5faa59dda3
+SIZE (mlpack-4.5.1.tar.gz) = 6590839
diff --git a/math/mlpack/pkg-plist b/math/mlpack/pkg-plist
index d36abf721fb5..0d7f21ef27ae 100644
--- a/math/mlpack/pkg-plist
+++ b/math/mlpack/pkg-plist
@@ -778,18 +778,18 @@ include/mlpack/methods/decision_tree/fitness_functions/information_gain.hpp
 include/mlpack/methods/decision_tree/fitness_functions/mad_gain.hpp
 include/mlpack/methods/decision_tree/fitness_functions/mse_gain.hpp
 include/mlpack/methods/decision_tree/select_functions/all_dimension_select.hpp
-include/mlpack/methods/decision_tree/select_functions/multiple_random_dimension_select.hpp
+include/mlpack/methods/decision_tree/select_functions/mult_random_dimension_select.hpp
 include/mlpack/methods/decision_tree/select_functions/random_dimension_select.hpp
 include/mlpack/methods/decision_tree/select_functions/select_functions.hpp
-include/mlpack/methods/decision_tree/split_functions/all_categorical_split.hpp
-include/mlpack/methods/decision_tree/split_functions/all_categorical_split_impl.hpp
-include/mlpack/methods/decision_tree/split_functions/best_binary_categorical_split.hpp
-include/mlpack/methods/decision_tree/split_functions/best_binary_categorical_split_impl.hpp
-include/mlpack/methods/decision_tree/split_functions/best_binary_numeric_split.hpp
-include/mlpack/methods/decision_tree/split_functions/best_binary_numeric_split_impl.hpp
-include/mlpack/methods/decision_tree/split_functions/random_binary_numeric_split.hpp
-include/mlpack/methods/decision_tree/split_functions/random_binary_numeric_split_impl.hpp
-include/mlpack/methods/decision_tree/split_functions/split_functions.hpp
+include/mlpack/methods/decision_tree/splits/all_categorical_split.hpp
+include/mlpack/methods/decision_tree/splits/all_categorical_split_impl.hpp
+include/mlpack/methods/decision_tree/splits/best_binary_categorical_split.hpp
+include/mlpack/methods/decision_tree/splits/best_binary_categorical_split_impl.hpp
+include/mlpack/methods/decision_tree/splits/best_binary_numeric_split.hpp
+include/mlpack/methods/decision_tree/splits/best_binary_numeric_split_impl.hpp
+include/mlpack/methods/decision_tree/splits/random_binary_numeric_split.hpp
+include/mlpack/methods/decision_tree/splits/random_binary_numeric_split_impl.hpp
+include/mlpack/methods/decision_tree/splits/splits.hpp
 include/mlpack/methods/decision_tree/utils.hpp
 include/mlpack/methods/det.hpp
 include/mlpack/methods/det/det.hpp