diff --git a/README.md b/README.md
index 29d3c68b..834ba621 100644
--- a/README.md
+++ b/README.md
@@ -688,6 +688,7 @@ Profile on LeetCode: [fartem](https://leetcode.com/fartem/).
 | 1376. Time Needed to Inform All Employees                                           | [Link](https://leetcode.com/problems/time-needed-to-inform-all-employees/)                                           | [Link](./lib/medium/1376_time_needed_to_inform_all_employees.rb)                                           | [Link](./test/medium/test_1376_time_needed_to_inform_all_employees.rb)                                           |
 | 1381. Design a Stack With Increment Operation                                       | [Link](https://leetcode.com/problems/design-a-stack-with-increment-operation/)                                       | [Link](./lib/medium/1381_design_a_stack_with_increment_operation.rb)                                       | [Link](./test/medium/test_1381_design_a_stack_with_increment_operation.rb)                                       |
 | 1382. Balance a Binary Search Tree                                                  | [Link](https://leetcode.com/problems/balance-a-binary-search-tree/)                                                  | [Link](./lib/medium/1382_balance_a_binary_search_tree.rb)                                                  | [Link](./test/medium/test_1382_balance_a_binary_search_tree.rb)                                                  |
+| 1387. Sort Integers by The Power Value                                              | [Link](https://leetcode.com/problems/sort-integers-by-the-power-value/)                                              | [Link](./lib/medium/1387_sort_integers_by_the_power_value.rb)                                              | [Link](./test/medium/test_1387_sort_integers_by_the_power_value.rb)                                              |
 | 1400. Construct K Palindrome Strings                                                | [Link](https://leetcode.com/problems/construct-k-palindrome-strings/)                                                | [Link](./lib/medium/1400_construct_k_palindrome_strings.rb)                                                | [Link](./test/medium/test_1400_construct_k_palindrome_strings.rb)                                                |
 | 2116. Check if a Parentheses String Can Be Valid                                    | [Link](https://leetcode.com/problems/check-if-a-parentheses-string-can-be-valid/)                                    | [Link](./lib/medium/2116_check_if_a_parentheses_string_can_be_valid.rb)                                    | [Link](./test/medium/test_2116_check_if_a_parentheses_string_can_be_valid.rb)                                    |
 | 2425. Bitwise XOR of All Pairings                                                   | [Link](https://leetcode.com/problems/bitwise-xor-of-all-pairings/)                                                   | [Link](./lib/medium/2425_bitwise_xor_of_all_pairings.rb)                                                   | [Link](./test/medium/test_2425_bitwise_xor_of_all_pairings.rb)                                                   |
diff --git a/leetcode-ruby.gemspec b/leetcode-ruby.gemspec
index 43860d89..cbcd8a2c 100644
--- a/leetcode-ruby.gemspec
+++ b/leetcode-ruby.gemspec
@@ -5,7 +5,7 @@ require 'English'
 ::Gem::Specification.new do |s|
   s.required_ruby_version = '>= 3.0'
   s.name = 'leetcode-ruby'
-  s.version = '8.5.5'
+  s.version = '8.5.6'
   s.license = 'MIT'
   s.files = ::Dir['lib/**/*.rb'] + %w[README.md]
   s.executable = 'leetcode-ruby'
diff --git a/lib/medium/1387_sort_integers_by_the_power_value.rb b/lib/medium/1387_sort_integers_by_the_power_value.rb
new file mode 100644
index 00000000..a3919255
--- /dev/null
+++ b/lib/medium/1387_sort_integers_by_the_power_value.rb
@@ -0,0 +1,26 @@
+# frozen_string_literal: true
+
+# https://leetcode.com/problems/sort-integers-by-the-power-value/
+# @param {Integer} lo
+# @param {Integer} hi
+# @param {Integer} k
+# @return {Integer}
+def get_kth(lo, hi, k)
+  powers = []
+
+  (lo..hi).each do |i|
+    num = i
+    power = 0
+
+    until num == 1
+      num = num.even? ? num / 2 : num * 3 + 1
+      power += 1
+    end
+
+    powers << [i, power]
+  end
+
+  powers.sort_by! { |o| o[1] }
+
+  powers[k - 1][0]
+end
diff --git a/test/medium/test_1387_sort_integers_by_the_power_value.rb b/test/medium/test_1387_sort_integers_by_the_power_value.rb
new file mode 100644
index 00000000..205d1740
--- /dev/null
+++ b/test/medium/test_1387_sort_integers_by_the_power_value.rb
@@ -0,0 +1,11 @@
+# frozen_string_literal: true
+
+require_relative '../test_helper'
+require_relative '../../lib/medium/1387_sort_integers_by_the_power_value'
+require 'minitest/autorun'
+
+class SortIntegersByThePowerValueTest < ::Minitest::Test
+  def test_default_one = assert_equal(13, get_kth(12, 15, 2))
+
+  def test_default_two = assert_equal(7, get_kth(7, 11, 4))
+end