diff --git a/.rubocop_todo.yml b/.rubocop_todo.yml
index ededff0..9f090fa 100644
--- a/.rubocop_todo.yml
+++ b/.rubocop_todo.yml
@@ -209,22 +209,6 @@ Style/SafeNavigation:
     - 'test/filesystem/file_stat_test.rb'
     - 'test/test_helper.rb'
 
-# Offense count: 42
-# Cop supports --auto-correct.
-# Configuration parameters: IgnoredMethods.
-# IgnoredMethods: respond_to, define_method
-Style/SymbolProc:
-  Exclude:
-    - 'lib/zip/file.rb'
-    - 'lib/zip/filesystem.rb'
-    - 'test/basic_zip_file_test.rb'
-    - 'test/case_sensitivity_test.rb'
-    - 'test/deflater_test.rb'
-    - 'test/file_extract_test.rb'
-    - 'test/file_split_test.rb'
-    - 'test/file_test.rb'
-    - 'test/filesystem/file_nonmutating_test.rb'
-
 # Offense count: 3
 # Cop supports --auto-correct.
 # Configuration parameters: EnforcedStyle, AllowSafeAssignment.
diff --git a/lib/zip/file.rb b/lib/zip/file.rb
index 346bbad..37dcd92 100644
--- a/lib/zip/file.rb
+++ b/lib/zip/file.rb
@@ -288,7 +288,7 @@ module Zip
 
     # Returns a string containing the contents of the specified entry
     def read(entry)
-      get_input_stream(entry) { |is| is.read }
+      get_input_stream(entry, &:read)
     end
 
     # Convenience method for adding the contents of a file to the archive
diff --git a/lib/zip/filesystem.rb b/lib/zip/filesystem.rb
index 2a5dbdf..4f3e995 100644
--- a/lib/zip/filesystem.rb
+++ b/lib/zip/filesystem.rb
@@ -390,7 +390,7 @@ module Zip
       alias lstat stat
 
       def readlines(fileName)
-        self.open(fileName) { |is| is.readlines }
+        self.open(fileName, &:readlines)
       end
 
       def read(fileName)
diff --git a/test/basic_zip_file_test.rb b/test/basic_zip_file_test.rb
index 9e490b4..3d21ae8 100644
--- a/test/basic_zip_file_test.rb
+++ b/test/basic_zip_file_test.rb
@@ -10,7 +10,7 @@ class BasicZipFileTest < MiniTest::Test
 
   def test_entries
     assert_equal(TestZipFile::TEST_ZIP2.entry_names.sort,
-                 @zip_file.entries.entries.sort.map { |e| e.name })
+                 @zip_file.entries.entries.sort.map(&:name))
   end
 
   def test_each
diff --git a/test/case_sensitivity_test.rb b/test/case_sensitivity_test.rb
index 7749e06..92fc0f6 100644
--- a/test/case_sensitivity_test.rb
+++ b/test/case_sensitivity_test.rb
@@ -25,7 +25,7 @@ class ZipCaseSensitivityTest < MiniTest::Test
     SRC_FILES.each_with_index do |a, i|
       assert_equal(a.last, zfRead.entries[i].name)
       AssertEntry.assert_contents(a.first,
-                                  zfRead.get_input_stream(a.last) { |zis| zis.read })
+                                  zfRead.get_input_stream(a.last, &:read))
     end
   end
 
@@ -56,8 +56,9 @@ class ZipCaseSensitivityTest < MiniTest::Test
     zfRead = ::Zip::File.new(EMPTY_FILENAME)
     assert_equal(SRC_FILES.collect { |_fn, en| en.downcase }.uniq.size, zfRead.entries.length)
     assert_equal(SRC_FILES.last.last.downcase, zfRead.entries.first.name.downcase)
-    AssertEntry.assert_contents(SRC_FILES.last.first,
-                                zfRead.get_input_stream(SRC_FILES.last.last) { |zis| zis.read })
+    AssertEntry.assert_contents(
+      SRC_FILES.last.first, zfRead.get_input_stream(SRC_FILES.last.last, &:read)
+    )
   end
 
   private
diff --git a/test/deflater_test.rb b/test/deflater_test.rb
index d1970ce..78c22df 100644
--- a/test/deflater_test.rb
+++ b/test/deflater_test.rb
@@ -43,7 +43,7 @@ class DeflaterTest < MiniTest::Test
   private
 
   def load_file(fileName)
-    File.open(fileName, 'rb') { |f| f.read }
+    File.open(fileName, 'rb', &:read)
   end
 
   def deflate(data, fileName)
diff --git a/test/file_extract_test.rb b/test/file_extract_test.rb
index a494f78..3992a1a 100644
--- a/test/file_extract_test.rb
+++ b/test/file_extract_test.rb
@@ -20,7 +20,7 @@ class ZipFileExtractTest < MiniTest::Test
 
       assert(File.exist?(EXTRACTED_FILENAME))
       AssertEntry.assert_contents(EXTRACTED_FILENAME,
-                                  zf.get_input_stream(ENTRY_TO_EXTRACT) { |is| is.read })
+                                  zf.get_input_stream(ENTRY_TO_EXTRACT, &:read))
 
       ::File.unlink(EXTRACTED_FILENAME)
 
@@ -29,7 +29,7 @@ class ZipFileExtractTest < MiniTest::Test
 
       assert(File.exist?(EXTRACTED_FILENAME))
       AssertEntry.assert_contents(EXTRACTED_FILENAME,
-                                  entry.get_input_stream { |is| is.read })
+                                  entry.get_input_stream(&:read))
     end
   end
 
diff --git a/test/file_split_test.rb b/test/file_split_test.rb
index c488f18..22dd134 100644
--- a/test/file_split_test.rb
+++ b/test/file_split_test.rb
@@ -43,7 +43,7 @@ class ZipFileSplitTest < MiniTest::Test
 
       assert(File.exist?(EXTRACTED_FILENAME))
       AssertEntry.assert_contents(EXTRACTED_FILENAME,
-                                  zf.get_input_stream(ENTRY_TO_EXTRACT) { |is| is.read })
+                                  zf.get_input_stream(ENTRY_TO_EXTRACT, &:read))
 
       File.unlink(EXTRACTED_FILENAME)
 
@@ -52,7 +52,7 @@ class ZipFileSplitTest < MiniTest::Test
 
       assert(File.exist?(EXTRACTED_FILENAME))
       AssertEntry.assert_contents(EXTRACTED_FILENAME,
-                                  entry.get_input_stream { |is| is.read })
+                                  entry.get_input_stream(&:read))
     end
   end
 end
diff --git a/test/file_test.rb b/test/file_test.rb
index ba3f0ea..21aa72f 100644
--- a/test/file_test.rb
+++ b/test/file_test.rb
@@ -106,14 +106,14 @@ class ZipFileTest < MiniTest::Test
   def test_open_buffer_with_string
     string = File.read('test/data/rubycode.zip')
     ::Zip::File.open_buffer string do |zf|
-      assert zf.entries.map { |e| e.name }.include?('zippedruby1.rb')
+      assert zf.entries.map(&:name).include?('zippedruby1.rb')
     end
   end
 
   def test_open_buffer_with_stringio
     string_io = StringIO.new File.read('test/data/rubycode.zip')
     ::Zip::File.open_buffer string_io do |zf|
-      assert zf.entries.map { |e| e.name }.include?('zippedruby1.rb')
+      assert zf.entries.map(&:name).include?('zippedruby1.rb')
     end
   end
 
@@ -171,7 +171,7 @@ class ZipFileTest < MiniTest::Test
   def test_open_buffer_without_block
     string_io = StringIO.new File.read('test/data/rubycode.zip')
     zf = ::Zip::File.open_buffer string_io
-    assert zf.entries.map { |e| e.name }.include?('zippedruby1.rb')
+    assert zf.entries.map(&:name).include?('zippedruby1.rb')
   end
 
   def test_cleans_up_tempfiles_after_close
@@ -201,7 +201,7 @@ class ZipFileTest < MiniTest::Test
     assert_equal(1, zfRead.entries.length)
     assert_equal(entryName, zfRead.entries.first.name)
     AssertEntry.assert_contents(srcFile,
-                                zfRead.get_input_stream(entryName) { |zis| zis.read })
+                                zfRead.get_input_stream(entryName, &:read))
   end
 
   def test_add_stored
@@ -221,7 +221,7 @@ class ZipFileTest < MiniTest::Test
     assert_equal(entry.size, entry.compressed_size)
     assert_equal(::Zip::Entry::STORED, entry.compression_method)
     AssertEntry.assert_contents(srcFile,
-                                zfRead.get_input_stream(entryName) { |zis| zis.read })
+                                zfRead.get_input_stream(entryName, &:read))
   end
 
   def test_recover_permissions_after_add_files_to_archive
@@ -277,15 +277,15 @@ class ZipFileTest < MiniTest::Test
     FileUtils.cp(TestZipFile::TEST_ZIP2.zip_name, TEST_ZIP.zip_name)
 
     zf = ::Zip::File.new(TEST_ZIP.zip_name)
-    assert(zf.entries.map { |e| e.name }.include?(entryToRemove))
+    assert(zf.entries.map(&:name).include?(entryToRemove))
     zf.remove(entryToRemove)
-    assert(!zf.entries.map { |e| e.name }.include?(entryToRemove))
-    assert_equal(zf.entries.map { |x| x.name }.sort, remainingEntries.sort)
+    assert(!zf.entries.map(&:name).include?(entryToRemove))
+    assert_equal(zf.entries.map(&:name).sort, remainingEntries.sort)
     zf.close
 
     zfRead = ::Zip::File.new(TEST_ZIP.zip_name)
-    assert(!zfRead.entries.map { |e| e.name }.include?(entryToRemove))
-    assert_equal(zfRead.entries.map { |x| x.name }.sort, remainingEntries.sort)
+    assert(!zfRead.entries.map(&:name).include?(entryToRemove))
+    assert_equal(zfRead.entries.map(&:name).sort, remainingEntries.sort)
     zfRead.close
   end
 
@@ -293,21 +293,21 @@ class ZipFileTest < MiniTest::Test
     entryToRename, * = TEST_ZIP.entry_names
 
     zf = ::Zip::File.new(TEST_ZIP.zip_name)
-    assert(zf.entries.map { |e| e.name }.include?(entryToRename))
+    assert(zf.entries.map(&:name).include?(entryToRename))
 
     contents = zf.read(entryToRename)
     newName = 'changed entry name'
-    assert(!zf.entries.map { |e| e.name }.include?(newName))
+    assert(!zf.entries.map(&:name).include?(newName))
 
     zf.rename(entryToRename, newName)
-    assert(zf.entries.map { |e| e.name }.include?(newName))
+    assert(zf.entries.map(&:name).include?(newName))
 
     assert_equal(contents, zf.read(newName))
 
     zf.close
 
     zfRead = ::Zip::File.new(TEST_ZIP.zip_name)
-    assert(zfRead.entries.map { |e| e.name }.include?(newName))
+    assert(zfRead.entries.map(&:name).include?(newName))
     assert_equal(contents, zfRead.read(newName))
     zfRead.close
   end
@@ -352,7 +352,7 @@ class ZipFileTest < MiniTest::Test
     end
 
     ::Zip::File.open(TEST_ZIP.zip_name) do |zf|
-      assert_equal(oldEntries.sort.map { |e| e.name }, zf.entries.sort.map { |e| e.name })
+      assert_equal(oldEntries.sort.map(&:name), zf.entries.sort.map(&:name))
     end
   end
 
@@ -373,8 +373,8 @@ class ZipFileTest < MiniTest::Test
     assert(gotCalled)
     oldEntries.delete_if { |e| e.name == renamedEntryName }
     ::Zip::File.open(TEST_ZIP.zip_name) do |zf|
-      assert_equal(oldEntries.sort.map { |e| e.name },
-                   zf.entries.sort.map { |e| e.name })
+      assert_equal(oldEntries.sort.map(&:name),
+                   zf.entries.sort.map(&:name))
     end
   end
 
@@ -407,13 +407,16 @@ class ZipFileTest < MiniTest::Test
     zf.close
     zfRead = ::Zip::File.new(TEST_ZIP.zip_name)
     AssertEntry.assert_contents(newEntrySrcFilename,
-                                zfRead.get_input_stream(entryToReplace) { |is| is.read })
+                                zfRead.get_input_stream(entryToReplace, &:read))
     AssertEntry.assert_contents(TEST_ZIP.entry_names[0],
-                                zfRead.get_input_stream(TEST_ZIP.entry_names[0]) { |is| is.read })
+                                zfRead.get_input_stream(TEST_ZIP.entry_names[0],
+                                                        &:read))
     AssertEntry.assert_contents(TEST_ZIP.entry_names[1],
-                                zfRead.get_input_stream(TEST_ZIP.entry_names[1]) { |is| is.read })
+                                zfRead.get_input_stream(TEST_ZIP.entry_names[1],
+                                                        &:read))
     AssertEntry.assert_contents(TEST_ZIP.entry_names[3],
-                                zfRead.get_input_stream(TEST_ZIP.entry_names[3]) { |is| is.read })
+                                zfRead.get_input_stream(TEST_ZIP.entry_names[3],
+                                                        &:read))
     zfRead.close
   end
 
@@ -555,7 +558,7 @@ class ZipFileTest < MiniTest::Test
         zf.add(filename, filename)
         assert_contains(zf, filename)
       end
-      assert_equal(zf.entries.sort.map { |e| e.name }, TestFiles::ASCII_TEST_FILES)
+      assert_equal(zf.entries.sort.map(&:name), TestFiles::ASCII_TEST_FILES)
 
       zf.rename(TestFiles::ASCII_TEST_FILES[0], 'newName')
       assert_not_contains(zf, TestFiles::ASCII_TEST_FILES[0])
@@ -588,7 +591,7 @@ class ZipFileTest < MiniTest::Test
   def test_preserve_file_order
     entryNames = nil
     ::Zip::File.open(TEST_ZIP.zip_name) do |zf|
-      entryNames = zf.entries.map { |e| e.to_s }
+      entryNames = zf.entries.map(&:to_s)
       zf.get_output_stream('a.txt') { |os| os.write 'this is a.txt' }
       zf.get_output_stream('z.txt') { |os| os.write 'this is z.txt' }
       zf.get_output_stream('k.txt') { |os| os.write 'this is k.txt' }
@@ -596,16 +599,16 @@ class ZipFileTest < MiniTest::Test
     end
 
     ::Zip::File.open(TEST_ZIP.zip_name) do |zf|
-      assert_equal(entryNames, zf.entries.map { |e| e.to_s })
-      entries = zf.entries.sort_by { |e| e.name }.reverse
+      assert_equal(entryNames, zf.entries.map(&:to_s))
+      entries = zf.entries.sort_by(&:name).reverse
       entries.each do |e|
         zf.remove e
         zf.get_output_stream(e) { |os| os.write 'foo' }
       end
-      entryNames = entries.map { |e| e.to_s }
+      entryNames = entries.map(&:to_s)
     end
     ::Zip::File.open(TEST_ZIP.zip_name) do |zf|
-      assert_equal(entryNames, zf.entries.map { |e| e.to_s })
+      assert_equal(entryNames, zf.entries.map(&:to_s))
     end
   end
 
diff --git a/test/filesystem/file_nonmutating_test.rb b/test/filesystem/file_nonmutating_test.rb
index 73161cf..af4db8f 100644
--- a/test/filesystem/file_nonmutating_test.rb
+++ b/test/filesystem/file_nonmutating_test.rb
@@ -468,12 +468,12 @@ class ZipFsFileNonmutatingTest < MiniTest::Test
     if Zip::RUNNING_ON_WINDOWS
       # This is pretty much projectile vomit but it allows the test to be
       # run on windows also
-      system_dir = ::File.popen('dir') { |f| f.read }.gsub(/Dir\(s\).*$/, '')
-      zipfile_dir = @zip_file.file.popen('dir') { |f| f.read }.gsub(/Dir\(s\).*$/, '')
+      system_dir = ::File.popen('dir', &:read).gsub(/Dir\(s\).*$/, '')
+      zipfile_dir = @zip_file.file.popen('dir', &:read).gsub(/Dir\(s\).*$/, '')
       assert_equal(system_dir, zipfile_dir)
     else
-      assert_equal(::File.popen('ls') { |f| f.read },
-                   @zip_file.file.popen('ls') { |f| f.read })
+      assert_equal(::File.popen('ls', &:read),
+                   @zip_file.file.popen('ls', &:read))
     end
   end