Gemfile.lock in d_heap-0.3.0 vs Gemfile.lock in d_heap-0.4.0

@@ -1,36 +1,34 @@
 PATH
   remote: .
   specs:
-    d_heap (0.3.0)
+    d_heap (0.4.0)
 
 GEM
   remote: https://rubygems.org/
   specs:
     ast (2.4.1)
-    benchmark-malloc (0.2.0)
-    benchmark-perf (0.6.0)
-    benchmark-trend (0.4.0)
+    benchmark_driver (0.15.16)
+    coderay (1.1.3)
     diff-lcs (1.4.4)
+    method_source (1.0.0)
     parallel (1.19.2)
     parser (2.7.2.0)
       ast (~> 2.4.1)
+    pry (0.13.1)
+      coderay (~> 1.1)
+      method_source (~> 1.0)
     rainbow (3.0.0)
     rake (13.0.3)
     rake-compiler (1.1.1)
       rake
     regexp_parser (1.8.2)
     rexml (3.2.3)
     rspec (3.10.0)
       rspec-core (~> 3.10.0)
       rspec-expectations (~> 3.10.0)
       rspec-mocks (~> 3.10.0)
-    rspec-benchmark (0.6.0)
-      benchmark-malloc (~> 0.2)
-      benchmark-perf (~> 0.6)
-      benchmark-trend (~> 0.4)
-      rspec (>= 3.0)
     rspec-core (3.10.0)
       rspec-support (~> 3.10.0)
     rspec-expectations (3.10.0)
       diff-lcs (>= 1.2.0, < 2.0)
       rspec-support (~> 3.10.0)
@@ -47,21 +45,24 @@
       rubocop-ast (>= 1.0.1)
       ruby-progressbar (~> 1.7)
       unicode-display_width (>= 1.4.0, < 2.0)
     rubocop-ast (1.1.1)
       parser (>= 2.7.1.5)
+    ruby-prof (1.4.2)
     ruby-progressbar (1.10.1)
     unicode-display_width (1.7.0)
 
 PLATFORMS
   ruby
 
 DEPENDENCIES
+  benchmark_driver
   d_heap!
+  pry
   rake (~> 13.0)
   rake-compiler
   rspec (~> 3.10)
-  rspec-benchmark
   rubocop (~> 1.0)
+  ruby-prof
 
 BUNDLED WITH
    2.2.3