diff --git a/cflinuxfs4/recipe/base.rb b/cflinuxfs4/recipe/base.rb
index b1c73c17..7e876eb1 100644
--- a/cflinuxfs4/recipe/base.rb
+++ b/cflinuxfs4/recipe/base.rb
@@ -1,6 +1,7 @@
 # frozen_string_literal: true
 
 require 'mini_portile2'
+require 'etc'
 require 'tmpdir'
 require 'fileutils'
 require_relative 'determine_checksum'
@@ -24,7 +25,7 @@ def configure_options
   end
 
   def compile
-    execute('compile', [make_cmd, '-j4'])
+    execute('compile', [make_cmd, "-j#{Etc.nprocessors}"])
   end
 
   def archive_filename
diff --git a/recipe/base.rb b/recipe/base.rb
index 5cd9346f..592d991d 100644
--- a/recipe/base.rb
+++ b/recipe/base.rb
@@ -1,6 +1,7 @@
 # encoding: utf-8
 require 'mini_portile'
 require 'net/ftp'
+require 'etc'
 require 'tmpdir'
 require 'fileutils'
 require_relative 'determine_checksum'
@@ -24,7 +25,7 @@ def configure_options
   end
 
   def compile
-    execute('compile', [make_cmd, '-j4'])
+    execute('compile', [make_cmd, "-j#{Etc.nprocessors}"])
   end
 
   def archive_filename
diff --git a/recipe/python.rb b/recipe/python.rb
index 48bd0c52..f7570d75 100644
--- a/recipe/python.rb
+++ b/recipe/python.rb
@@ -58,7 +58,7 @@ def prefix_path
 
   def install_apt(packages)
     STDOUT.print "Running 'install dependencies' for #{@name} #{@version}... "
-    if run("sudo apt-get update && sudo apt-get -y install #{packages}")
+    if run("apt-get update && apt-get -y install #{packages}")
       STDOUT.puts "OK"
     else
       raise "Failed to complete install dependencies task"